GREAT WESTERN FINANCIAL CORP
SC 14D1, 1997-05-19
SAVINGS INSTITUTION, FEDERALLY CHARTERED
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<PAGE>
 
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549


                                SCHEDULE 14D-1
                            TENDER OFFER STATEMENT
     (PURSUANT TO SECTION 14(D)(1) OF THE SECURITIES EXCHANGE ACT OF 1934)


                      GREAT WESTERN FINANCIAL CORPORATION
                           (Name of Subject Company)


                           H. F. AHMANSON & COMPANY
                                   (Bidder)


                    COMMON STOCK, PAR VALUE $1.00 PER SHARE
                        (Title of Class of Securities)


                                   391442100
                     (CUSIP Number of Class of Securities)


                             MADELEINE A. KLEINER
              SENIOR EXECUTIVE VICE PRESIDENT AND GENERAL COUNSEL
    4900 RIVERGRADE ROAD, IRWINDALE, CALIFORNIA 91706 PHONE: (818) 960-6311

  (Name and address, including zip code, and telephone number, including area
                          code, of agent for service)


                                  COPIES TO:


                              H. RODGIN COHEN AND
                              ALAN J. SINSHEIMER
                              SULLIVAN & CROMWELL
                               125 BROAD STREET
                           NEW YORK, NEW YORK 10004
                                (212) 558-4000


                           CALCULATION OF FILING FEE


      TRANSACTION VALUATION(1)                    AMOUNT OF FILING FEE(2)
          $6,937,724,357                                    $0
<PAGE>
 
(1)  For purposes of calculating the filing fee only. This calculation assumes
     that 149,034,834 shares of common stock, $1.00 par value per share, of
     Great Western Financial Corporation (each, a "Share" and collectively, the
     "Shares") (will be exchanged for 178,841,801 shares of common stock, $0.01
     par value per share, of H.F. Ahmanson & Company. Pursuant to Rules 0-11(d)
     and 0-11(a)(4) of the Securities Exchange Act of 1934, as amended, the
     filing fee was computed on the basis of the average of the high and low
     prices of Shares as reported on the New York Stock Exchange Composite Tape
     on May 16, 1997.

(2)  1/50 of one percent of Transaction Value.

CHECK BOX IF ANY PART OF THE FEE IS OFFSET AS PROVIDED BY RULE 0-11(a)(2) AND
IDENTIFY THE FILING WITH WHICH THE OFFSETTING FEE WAS PREVIOUSLY PAID. IDENTIFY
THE PREVIOUS FILING BY REGISTRATION STATEMENT NUMBER OR THE FORM OR SCHEDULE AND
THE DATE OF ITS FILING.   X

Amount Previously Paid: $1,467,088  Filing Party: H. F. Ahmanson & Company

Form of Registration: Form S-4, Registration No.  333-21919

Date Originally Filed: February 18, 1997



This Tender Offer Statement relates to the exchange offer by H. F. Ahmanson &
Company, a Delaware corporation ("Ahmanson"), to exchange any and all of the
outstanding shares of common stock, $1.00 par value per share (each, a "Share"
and collectively, the "Shares"), of Great Western Financial Corporation, a
Delaware corporation ("Great Western"), for shares of common stock, par value
$0.01 per share, of Ahmanson ("Ahmanson Common Stock"), upon the terms and
subject to the conditions set forth in Ahmanson's preliminary Prospectus, dated
May 13, 1997 (the "Prospectus"), and the related form of Letter of Transmittal.


     ITEM 1.  SECURITY AND SUBJECT COMPANY.

(a)  The name of the subject company is Great Western Financial Corporation and
     the address of its principal executive offices is 9200 Oakdale Avenue,
     Chatsworth, CA 91311 (telephone number ((818) 775-3411).

(b)  The class of securities to which this statement relates is the Shares. The
     information set forth on the cover page and page ii of the Prospectus, and
     under the caption "The Offer--General" in the Prospectus, a copy of which
     is attached hereto as Exhibit (a)(1), is incorporated herein by reference.

(c)  The information set forth under the caption "Market Prices and Dividends"
     in the Prospectus is incorporated herein by reference.

                                      -2-
<PAGE>
 
     ITEM 2.  IDENTITY AND BACKGROUND.

(a)-(d); (g) This statement is being filed by Ahmanson.  Information regarding
Ahmanson's name, state of organization, principal business and address of
principal business office is set forth under the captions "Summary--Ahmanson"
and "Business of Ahmanson" in the Prospectus and is incorporated herein by
reference.  The name, principal business address and the present office or other
principal occupation or employment, and the name, principal business and address
of any corporation or other organization in which such employment is carried on,
of the directors and executive officers of Ahmanson are set forth in Schedule I
to the preliminary proxy statement on Schedule 14A, as amended, originally filed
on May 14, 1997 (the "Ahmanson Proxy Statement"), a copy of which is attached
hereto as Exhibit (f), and is incorporated herein by reference.

In addition, information regarding three additional executive officers and
directors Ahmanson appointed in May 1997 is set forth below:

      William A. Barrett has been an Executive Vice President of Home Savings
for more than five years.

      Ms. Cloyde joined Home Savings in her present capacity in September 1996.
From June 1994 to April 1996 she was Executive Vice President for Cash
Management at First Interstate Bancorp. From December 1992 to June 1994 she was
Executive Vice President and Manager of Cash Management and Corporate Services
at First Interstate Bank of California. From September 1986 to December 1992 she
was Senior Vice President and Manager of Cash Management at First Interstate
Bank of California.

      Mr. Forsythe joined Home Savings as Executive Vice President in November
1995. From August 1993 until joining Home Savings, Mr. Forsythe was Senior Vice
President and Chief Retail Officer for Banc One Ohio Corporation. From September
1990 until August 1993 he was Executive Vice President and Chief Retail Officer
at First Gibraltar/First Madison Bank.

(e)-(f) Neither Ahmanson, nor, to the best of Ahmanson's knowledge, any of the
directors or executive officers of Ahmanson, has during the last five years (i)
been convicted in a criminal proceeding (excluding traffic violations or similar
misdemeanors) or (ii) been a party to a civil proceeding of a judicial or
administrative body of competent jurisdiction and as a result of such proceeding
was or is subject to a judgment, decree or final order enjoining future
violations of, or prohibiting activities subject to, federal or state securities
laws or finding any violation of such laws.


     ITEM 3.  PAST CONTACTS, TRANSACTIONS OR NEGOTIATIONS
              WITH THE SUBJECT COMPANY.

(a)-(b) The information set forth under the captions "Summary--Background of the
Offer" and "Background of the Offer" in the Prospectus is incorporated herein by
reference.


     ITEM 4.  SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

(a)  The information set forth on the outside front cover page of the Prospectus
     and under the captions "Summary--The Offer" and "The Offer--General" in the
     Prospectus is incorporated herein by reference.

(b)  Not applicable.

(c)  Not applicable.


     ITEM 5.  PURPOSE OF THE TENDER OFFER AND PLANS OR PROPOSALS
              OF THE BIDDER.

(a)-(g) The information set forth under the captions "The Offer--Effect of Offer
on Market for Shares; Registration Under the Exchange Act," "The Offer--Purpose
of the Offer; the Merger," "Comparison of Rights of Holders of GWF Common Stock
and Ahmanson Common Stock" and "Market Prices and Dividends" in the Prospectus
is incorporated herein by reference.

                                      -3-
<PAGE>
 
     ITEM 6.  INTEREST IN SECURITIES OF THE SUBJECT COMPANY.

(a)-(b) The information set forth in Schedule III of the Ahmanson Proxy
Statement is incorporated herein by reference.  Such information is current
through the date hereof.


     ITEM 7.  CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS
              WITH RESPECT TO THE SUBJECT COMPANY'S SECURITIES.

Not applicable.


     ITEM 8.  PERSONS RETAINED, EMPLOYED OR TO BE COMPENSATED.

The information set forth under the caption "The Offer--Fees and Expenses" in
the Prospectus and under the caption "Solicitation of Proxies" in the Ahmanson
Proxy Statement is incorporated herein by reference.


     ITEM 9.  FINANCIAL STATEMENTS OF CERTAIN BIDDERS.

The information set forth under the captions "Summary," "Business of Ahmanson,"
"Ahmanson and GWF Pro Forma Combined Financial Information (unaudited)" "Pro
Forma Combined Statement of Financial Condition (unaudited)" "Pro Forma
Combined Statement of Operations (unaudited)," and "Notes to Pro Forma Combined
Financial Statements (unaudited)," in the Prospectus is incorporated herein by
reference.  The financial statements contained in Item 8 of Ahmanson's Annual
Report on Form 10-K for the year ended December 31, 1996 and in Ahmanson's
Quarterly Report on Form 10-Q for the quarter ended March 31, 1997 are
incorporated herein by reference.

The incorporation by reference herein of the above-reference financial
information does not constitute an admission that such information is material
to a decision by a security holder of Great Western whether to exchange, tender
or hold securities being sought in the Offer.


     ITEM 10.  ADDITIONAL INFORMATION.

(a) Not applicable.

(b)-(c) The information set forth under the captions "Background of the Offer--
Comparison of the Proposals," "The Offer--Regulatory Approval Condition," 
"The Offer--Minimum Tender Condition," "The Offer--Ahmanson Stockholder Approval
Condition," "The Offer--Rights Plan Condition and DGCL 203 Condition," "The
Offer--GWF/WAMU Merger Agreement Condition" and "The Offer--Certain Other
Conditions of the Offer" in the Prospectus is incorporated herein by reference.

                                      -4-
<PAGE>
 
(d) The information set forth under the caption "The Offer--Effect of Offer on
Market for Shares; Registration Under the Exchange Act" in the Prospectus is
incorporated herein by reference.

(e) The information set forth under the captions "Summary--Background of the
Offer" and "Background of the Offer--Litigation" in the Prospectus is
incorporated herein by reference.

(f) The information set forth in the Prospectus and the related Letter of
Transmittal, attached as exhibits (a)(1) and (a)(2) hereto, is incorporated
herein by reference.


     ITEM 11.  MATERIAL TO BE FILED AS EXHIBITS.

(a)(1) Preliminary Prospectus of H. F. Ahmanson & Company, dated May 13, 1997.

(a)(2) Form of Letter of Transmittal.

(a)(3) Form of Notice of Guaranteed Delivery.

(a)(4) Form of Letter to Brokers, Dealers, Commercial Banks, Trust Companies and
Other Nominees.

(a)(5) Form of Letter to Clients for use by Brokers, Dealers, Commercial Banks,
Trust Companies and Other Nominees.

(a)(6) Form of Summary Advertisement.*

(a)(7) Text of Press Release.*

(b) Not applicable.

(c) Not applicable.

(d) Tax Opinion of Sullivan & Cromwell.*

(e) See Exhibit (a)(1).

(f) Preliminary Proxy Statement of H. F. Ahmanson & Company, dated May 14, 1997.
___________________
*  To be filed by amendment.

                                      -5-
<PAGE>
 
                                   SIGNATURE

After due inquiry and to the best of my knowledge and belief, I certify that the
information set forth in this statement is true, complete and correct.

 

                                    By: /s/ Madeleine A. Kleiner
                                        ------------------------
                                        Name:  Madeleine A. Kleiner
                                        Title: Senior Executive Vice
                                               President and General
                                               Counsel

Dated: May 19, 1997

                                      -6-
<PAGE>
 
                                 EXHIBIT INDEX

EXHIBIT NO.                         DESCRIPTION

(a)(1) Preliminary Prospectus of H. F. Ahmanson & Company, dated May 13, 1997.

(a)(2) Form of Letter of Transmittal.

(a)(3) Form of Notice of Guaranteed Delivery.

(a)(4) Form of Letter to Brokers, Dealers, Commercial Banks, Trust Companies and
       Other Nominees.

(a)(5) Form of Letter to Clients for use by Brokers, Dealers, Commercial Banks,
       Trust Companies and Other Nominees.

(a)(6) Form of Summary Advertisement.*

(a)(7) Text of Press Release.*

(b)    Not applicable.

(c)    Not applicable.

(d)    Tax Opinion of Sullivan & Cromwell.*

(e)    See Exhibit (a)(1).

(f)    Preliminary Proxy Statement of H. F. Ahmanson & Company, dated May 14,
       1997.
_______________
*  To be filed by amendment.

                                      -7-

<PAGE>

                                                             EXHIBIT 99.(a)(1)

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A         +
+REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE   +
+SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR MAY  +
+OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT        +
+BECOMES EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR   +
+THE SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BY ANY SALE OF THESE      +
+SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE    +
+UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF  +
+ANY SUCH STATE.                                                               +
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
                    
                 SUBJECT TO COMPLETION, DATED MAY 13, 1997     
PROSPECTUS
 
            OFFER TO EXCHANGE EACH OUTSTANDING SHARE OF COMMON STOCK
             
          (INCLUDING THE ASSOCIATED COMMON STOCK PURCHASE RIGHTS)     
                                       OF
                      GREAT WESTERN FINANCIAL CORPORATION
                                      FOR
                        
                         A NUMBER OF SHARES OF COMMON STOCK
                                       OF
                            H. F. AHMANSON & COMPANY
                    
                 EQUAL TO THE EXCHANGE RATIO STATED HEREIN     
     
  THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK CITY
   TIME, ON           , 1997, UNLESS THE OFFER IS EXTENDED. SHARES WHICH ARE
    TENDERED PURSUANT TO THE OFFER MAY BE WITHDRAWN AT ANY TIME PRIOR TO THE
                         EXPIRATION OF THE OFFER.     
   
  H. F. Ahmanson & Company, a Delaware corporation ("Ahmanson"), hereby offers,
upon the terms and subject to the conditions set forth herein and in the
related Letter of Transmittal (which, together with any amendments or
supplements hereto or thereto, collectively constitute the "Offer"), to
exchange, for each outstanding share of Common Stock, par value $1.00 per share
(each a "Share" and collectively, the "Shares"), of Great Western Financial
Corporation, a Delaware corporation ("GWF"), including the associated common
stock purchase rights (each, a "Right" and collectively, the "Rights") issued
pursuant to the GWF Rights Plan (as defined herein), a number of shares of
Common Stock, par value $0.01 per share ("Ahmanson Common Stock"), of Ahmanson
(such number, the "Exchange Ratio") determined by dividing $50 by the average
closing price of Ahmanson Common Stock on the New York Stock Exchange (the
"NYSE") during the 20 trading days ending on the third trading day prior to the
Expiration Date (as defined herein) (such 20-day period, the "Averaging
Period"), subject to a minimum ratio of 1.10 (which would apply when such
average closing price is $45.45 or above) and a maximum ratio of 1.20 (which
would apply when such average closing price is $41.67 or below). Based on the
closing price of the Ahmanson Common Stock on [     ], 1997 (and assuming the
average closing price of the Ahmanson Common Stock on the NYSE during the
Averaging Period is equal to that closing price), the Exchange Ratio would be
[    ] and the Offer would have an implied market value of $[     ] per Share,
or $[  ] per Share more than the implied market value of the proposed merger
between GWF and WAMU (the "Proposed GWF/WAMU Merger") on such date. Changes in
the market price of Ahmanson Common Stock before the date the Shares are
accepted for exchange by Ahmanson pursuant to the Offer will affect the number
of shares or the market value of Ahmanson Common Stock to be received in the
Offer.     
   
  The purpose of the Offer is for Ahmanson to acquire control of, and
thereafter the entire common equity interest in, GWF. Ahmanson intends,
promptly after consummation of the Offer, to seek to have GWF consummate a
merger with Ahmanson in which each outstanding Share (except for treasury
shares of GWF and Shares beneficially owned directly or indirectly by Ahmanson
or its subsidiaries other than in a fiduciary capacity) would be converted into
a number of shares of Ahmanson Common Stock equal to the Exchange Ratio (the
"Merger"). The Offer and the Merger are herein referred to collectively as the
"Combination".     
                                                        (continued on next page)
 
                                   --------
 
 THESE SECURITIES HAVE NOT BEEN APPROVED  OR DISAPPROVED BY THE SECURITIES AND
  EXCHANGE  COMMISSION  OR  ANY  STATE  SECURITIES  COMMISSION  NOR  HAS  THE
    SECURITIES AND EXCHANGE  COMMISSION OR ANY  STATE SECURITIES  COMMISSION
     PASSED  UPON  THE  ACCURACY  OR  ADEQUACY  OF  THIS  PROSPECTUS.  ANY
      REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
                                   --------
   
THE  SECURITIES OFFERED  HEREBY ARE  NOT  SAVINGS ACCOUNTS,  DEPOSITS OR  OTHER
 OBLIGATIONS OF ANY  BANK OR  SAVINGS ASSOCIATION AND  ARE NOT  INSURED BY  THE
 FEDERAL DEPOSIT INSURANCE  CORPORATION, THE BANK INSURANCE  FUND, THE SAVINGS
  ASSOCIATION INSURANCE FUND OR ANY OTHER GOVERNMENTAL AGENCY.     
 
                                   --------
 
                     The Dealer Managers for the Offer are:
   
Credit Suisse First Boston Corporation _______________Montgomery Securities     
                                                                               
                                                                               
                                     , 1997     
<PAGE>
 
          
   AHMANSON'S OBLIGATION TO EXCHANGE SHARES OF AHMANSON COMMON STOCK FOR
SHARES PURSUANT TO THE OFFER IS CONDITIONED UPON, AMONG OTHER THINGS, (I)
THERE BEING VALIDLY TENDERED AND NOT WITHDRAWN PRIOR TO THE EXPIRATION OF THE
OFFER A NUMBER OF SHARES WHICH, TOGETHER WITH THE SHARES BENEFICIALLY OWNED BY
AHMANSON AND ITS AFFILIATES FOR THEIR OWN RESPECTIVE ACCOUNTS (CURRENTLY
3,560,500 SHARES), WILL CONSTITUTE AT LEAST A MAJORITY OF THE TOTAL NUMBER OF
OUTSTANDING SHARES ON A FULLY DILUTED BASIS (AS THOUGH ALL OPTIONS OR OTHER
SECURITIES CONVERTIBLE INTO OR EXERCISABLE OR EXCHANGEABLE FOR SHARES, OTHER
THAN THE RIGHTS (AS DEFINED HEREIN), HAD BEEN SO CONVERTED, EXERCISED OR
EXCHANGED) AS OF THE DATE THE SHARES ARE ACCEPTED FOR EXCHANGE BY AHMANSON
PURSUANT TO THE OFFER (THE "MINIMUM TENDER CONDITION") (BASED ON THE NUMBER OF
SHARES OUTSTANDING ON MARCH 31, 1997, OR RESERVED FOR ISSUANCE PURSUANT TO
GWF'S EMPLOYEE STOCK OPTION PLANS AND DIVIDEND REINVESTMENT PLAN AS REPORTED
BY GWF AS OF DECEMBER 31, 1996 AND SHARES CURRENTLY OWNED BENEFICIALLY BY
AHMANSON AND ITS AFFILIATES FOR THEIR OWN RESPECTIVE ACCOUNTS, AHMANSON
BELIEVES THE MINIMUM TENDER CONDITION WOULD HAVE BEEN SATISFIED ON MARCH 31,
1997 IF AT LEAST AN AGGREGATE OF 72,718,804 SHARES, OR APPROXIMATELY 53% OF
THE SHARES OUTSTANDING AS OF MARCH 31, 1997, HAD BEEN VALIDLY TENDERED
PURSUANT TO THE OFFER AND NOT WITHDRAWN), (II) APPROVAL OF THE AHMANSON
CHARTER AMENDMENT (AS DEFINED HEREIN) AND THE ISSUANCE OF SHARES OF AHMANSON
COMMON STOCK PURSUANT TO THE OFFER AND THE MERGER (AS DEFINED HEREIN) BY THE
HOLDERS OF A MAJORITY OF THE TOTAL NUMBER OF OUTSTANDING SHARES OF AHMANSON
COMMON STOCK ENTITLED TO VOTE AT A MEETING OF SUCH HOLDERS (THE "AHMANSON
STOCKHOLDER APPROVAL CONDITION"), (III) THE BOARD OF DIRECTORS OF GWF HAVING
REDEEMED THE RIGHTS AND, PURSUANT TO SECTION 203 OF THE DELAWARE GENERAL
CORPORATION LAW (THE "DGCL"), APPROVED THE ACQUISITION OF SHARES PURSUANT TO
THE OFFER, OR AHMANSON BEING OTHERWISE SATISFIED IN ITS SOLE DISCRETION THAT
THE RIGHTS AND THE PROVISIONS OF SECTION 203 OF THE DGCL RESTRICTING CERTAIN
BUSINESS COMBINATIONS ARE INVALID OR ARE NOT APPLICABLE TO THE ACQUISITION OF
SHARES PURSUANT TO THE OFFER AND THE MERGER (THE "RIGHTS PLAN AND DGCL 203
CONDITION"), (IV) THE STOCKHOLDERS OF GWF NOT HAVING APPROVED THE AGREEMENT
AND PLAN OF MERGER BETWEEN GWF AND WAMU (THE "GWF/WAMU MERGER AGREEMENT
CONDITION"), AND (V) ALL REGULATORY APPROVALS REQUIRED TO CONSUMMATE THE OFFER
AND THE MERGER HAVING BEEN OBTAINED AND REMAINING IN FULL FORCE AND EFFECT AND
NO SUCH APPROVAL CONTAINING ANY CONDITIONS OR RESTRICTIONS WHICH THE BOARD OF
DIRECTORS OF AHMANSON REASONABLY DETERMINES IN GOOD FAITH MAY NOT BE SATISFIED
OR WILL HAVE OR REASONABLY BE EXPECTED TO HAVE A MATERIAL ADVERSE EFFECT ON
AHMANSON, GWF AND THEIR RESPECTIVE SUBSIDIARIES TAKEN AS A WHOLE (THE
"REGULATORY APPROVALS CONDITION").     
 
                                  -----------
   
THIS PROSPECTUS AND THE OFFER MADE HEREBY DO NOT CONSTITUTE A SOLICITATION OF
ANY PROXIES. ANY SUCH SOLICITATIONS WILL BE MADE ONLY PURSUANT TO SEPARATE
PROXY SOLICITATION MATERIALS COMPLYING WITH THE REQUIREMENTS OF SECTION 14(A)
OF THE SECURITIES EXCHANGE ACT OF 1934.     
 
                                  -----------
 
                                   IMPORTANT
   
  Any stockholder desiring to tender all or any portion of his Shares and the
associated Rights should either (a) complete and sign the Letter of
Transmittal or a facsimile copy thereof in accordance with the instructions in
the Letter of Transmittal, and mail or deliver the Letter of Transmittal or
such facsimile and any other required documents to the Exchange Agent and
either deliver the certificates for such Shares and Rights to the Exchange
Agent along with the Letter of Transmittal, deliver such Shares and Rights
pursuant to the procedures for book-entry transfer set forth herein (in the
case of Rights, only if such procedures are available) or comply with the
guaranteed delivery procedures set forth below or (b) request his broker,
dealer, commercial bank, trust company or other nominee to effect the
transaction for him. A stockholder having Shares and Rights registered in the
name of a broker, dealer, commercial bank, trust company or other nominee must
contact such broker, dealer, commercial bank, trust company or other nominee
if he desires to tender such Shares and Rights.     
   
  Stockholders will be required to tender one Right for each Share tendered in
order to effect a valid tender of Shares, unless the Rights Plan and DGCL 203
Condition has been satisfied or waived. Unless the GWF Distribution Date (as
defined herein) occurs, a tender of Shares will constitute a tender of the
associated Rights.     
 
  Questions and requests for assistance may be directed to the Information
Agent or to the Dealer Managers at their respective addresses and telephone
numbers set forth on the back cover of this Prospectus. Requests for
additional copies of this Prospectus and the Letter of Transmittal may be
directed to the Information Agent or to brokers, dealers, commercial banks or
trust companies.
                                  -----------
 
  All references in this Prospectus to the Ahmanson Common Stock include the
associated Ahmanson Rights (as defined herein) issued pursuant to the Ahmanson
Rights Plan (as defined herein).
 
                                       2
<PAGE>
 
                               TABLE OF CONTENTS
<TABLE>   
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>
Available Information.....................................................   4
Incorporation of Certain Information by Reference ........................   5
Summary...................................................................   7
Investment Considerations.................................................  24
Background of the Offer...................................................  26
  Background of the Ahmanson Merger Proposal..............................  26
  The GWF/WAMU Merger Agreement...........................................  26
  Ahmanson's Enhanced Merger Proposal.....................................  27
  Reasons for the Combination.............................................  27
  Comparison of the Proposals.............................................  34
  Actions Related to the Offer............................................  37
  Litigation..............................................................  41
The Offer.................................................................  45
  General.................................................................  45
  Timing of the Offer.....................................................  46
  Extension, Termination and Amendment....................................  47
  Exchange of Shares; Delivery of Ahmanson Common Stock...................  48
  Cash in Lieu of Fractional Shares of Ahmanson Common Stock..............  48
  Withdrawal Rights.......................................................  49
  Procedure for Tendering Shares..........................................  49
  Certain Federal Income Tax Consequences.................................  52
  Effect of Offer on Market for Shares; Registration Under the Exchange
   Act....................................................................  54
  Purpose of the Offer; the Merger........................................  55
  Minimum Tender Condition................................................  56
  Ahmanson Stockholder Approval Condition.................................  57
  Rights Plan and DGCL 203 Condition......................................  57
  GWF/WAMU Merger Agreement Condition.....................................  58
</TABLE>    
<TABLE>   
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>
  Regulatory Approvals Condition..........................................  58
  Certain Other Conditions of the Offer...................................  60
  Relationships with GWF..................................................  61
  Fees and Expenses.......................................................  62
  Accounting Treatment....................................................  62
  Stock Exchange Listing..................................................  62
  Resale of Ahmanson Common Stock Received in the Offer...................  62
Comparison of Rights of Holders of GWF Common Stock and Ahmanson Common
 Stock....................................................................  63
Market Prices and Dividends...............................................  67
  Ahmanson................................................................  67
  GWF.....................................................................  68
Business of Ahmanson......................................................  69
Business of GWF...........................................................  70
Ahmanson and GWF Pro Forma Combined Financial Information.................  71
Description of Ahmanson Capital Stock.....................................  80
  Ahmanson Common Stock...................................................  80
  Amendments to the Ahmanson Charter......................................  80
  Repurchases of Ahmanson Common Stock....................................  80
  Ahmanson Preferred Stock................................................  81
  New Ahmanson 8.30% Preferred Stock......................................  82
  New Ahmanson Depositary Shares..........................................  84
  Certain Regulatory Considerations.......................................  87
Validity of Ahmanson Common Stock.........................................  92
Experts...................................................................  92
Management and Additional Information.....................................  92
Schedule A--Section 203 of the Delaware General Corporation Law........... A-1
</TABLE>    
 
                                       3
<PAGE>
 
                             AVAILABLE INFORMATION
   
  Ahmanson and GWF are both subject to the informational requirements of the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), and, in
accordance therewith, file reports, proxy statements and other information
with the Securities and Exchange Commission (the "Commission"). The reports,
proxy statements and other information filed by Ahmanson and GWF with the
Commission may be inspected and copied at the Commission's public reference
room located at 450 Fifth Street, N.W., Room 1024, Washington D.C. 20549, and
at the public reference facilities in the Commission's regional offices
located at: 7 World Trade Center, 13th Floor, New York, New York 10048; and
Citicorp Center, 500 West Madison Street, Suite 1400, Chicago, IL 60601.
Copies of such material may be obtained at prescribed rates by writing to the
Commission, Public Reference Section, 450 Fifth Street, N.W., Washington, D.C.
20549. Certain of such reports, proxy statements and other information are
also available from the Commission over the Internet at http://www.sec.gov.
The shares of Ahmanson Common Stock and the Shares are listed on the NYSE and
the Pacific Stock Exchange (the "PSE"). The periodic reports, proxy statements
and other information filed by Ahmanson and GWF with the Commission may be
inspected at the offices of the NYSE, 20 Broad Street, New York, New York
10005 and at the offices of the PSE, 301 Pine Street, San Francisco,
California 94104.     
   
  This Prospectus is included as part of a registration statement on Form S-4
(together with all amendments and exhibits thereto, including documents and
information incorporated by reference, the "Registration Statement") filed
with the Commission by Ahmanson, relating to the registration under the
Securities Act of 1933, as amended (the "Securities Act"), of up to
174,108,000 shares of Ahmanson Common Stock. This Prospectus does not contain
all of the information set forth in the Registration Statement, certain
portions of which have been omitted pursuant to the rules and regulations of
the Commission, to which reference is hereby made for further information with
respect to Ahmanson and GWF and the Ahmanson Common Stock offered hereby.
Statements contained herein concerning any documents are not necessarily
complete and, in each instance, reference is made to the copies of such
documents filed as exhibits to the Registration Statement. Each such statement
is qualified in its entirety by such reference.     
   
  Although Ahmanson has included information concerning GWF and its proposed
merger with WAMU insofar as it is known or reasonably available to Ahmanson,
Ahmanson is not currently affiliated with GWF and GWF has to date not
permitted access by Ahmanson to GWF's books and records. Therefore,
information concerning GWF or its proposed merger with WAMU which has not been
made public is not available to Ahmanson. Ahmanson was not involved in the
preparation of the information and statements relating to GWF or its proposed
merger with WAMU contained or incorporated by reference in this Prospectus in
reliance upon publicly available information and, for the foregoing reasons,
is not in a position to verify any such information or statements.
Accordingly, Ahmanson does not assert that such information or statements are
accurate or complete.     
   
  Pursuant to Rule 409 promulgated under the Securities Act and Rule 12b-21
promulgated under the Exchange Act, Ahmanson requested on February 18, 1997
that GWF and its independent accountants provide to Ahmanson the information
required for complete disclosure concerning the business, operations,
financial condition and management of GWF in this Registration Statement. As
of the date hereof, neither GWF nor its independent accountants have provided
any information in response to such request and neither Rule 409 nor Rule 12b-
21 imposes any obligation on them to do so. Ahmanson will provide any and all
information which it receives from GWF or its independent accountants in
connection with the proposed merger of Ahmanson with GWF and which Ahmanson
deems material, reliable and appropriate in a subsequently prepared amendment
or supplement hereto.     
 
                                       4
<PAGE>
 
               INCORPORATION OF CERTAIN INFORMATION BY REFERENCE
   
  The following documents filed with the Commission by Ahmanson (File No. 1-
8930) are incorporated herein by reference: (a) Ahmanson's Annual Report on
Form 10-K for the year ended December 31, 1996 and an amendment thereto on
Form 10-K/A dated March 31, 1997 (together, the "1996 Ahmanson 10-K"); (b) the
portions of Ahmanson's Proxy Statement for the Annual Meeting of Stockholders
held on April 21, 1997 that have been incorporated by reference in the 1996
Ahmanson 10-K; (c) Ahmanson's Current Reports on Form 8-K dated January 15,
1997, February 17, 1997, February 21, 1997, February 25, 1997, March 10, 1997,
March 17, 1997, March 19, 1997 (two Current Reports), March 25, 1997, April 8,
1997 and April 28, 1997; (d) Ahmanson's definitive Proxy Statement on Schedule
14A dated May 12, 1997; (e) Ahmanson's Definitive Consent Statement on
Schedule 14A dated March 3, 1997 and Consent Statement Supplement on Schedule
14A dated March 17, 1997; (f) the following soliciting materials of Ahmanson
filed pursuant to Rule 14a-11(c) and 14a-12 of the Exchange Act: press
releases filed February 18, 1997, February 24, 1997, February 26, 1997,
February 27, 1997, February 28, 1997, March 3, 1997, March 6, 1997, March 7,
1997, March 12, 1997, March 17, 1997, March 18, 1997, March 19, 1997, March
20, 1997, March 24, 1997, March 26, 1997, March 27, 1997, March 31, 1997,
April 3, 1997, April 9, 1997, April 11, 1997, April 14, 1997, April 21, 1997,
April 22, 1997, April 24, 1997, April 25, 1997, April 28, 1997, April 30,
1997, May 1, 1997, May 5, 1997, May 6, 1997, May 8, 1997, May 9, 1997 and May
12, 1997; newspaper advertisements filed on February 27, 1997, March 6, 1997,
March 14, 1997, March 20, 1997, March 21, 1997, March 31, 1997 and April 15,
1997; investor presentation materials filed on February 28, 1997, April 1,
1997, April 9, 1997 and April 22, 1997; letter to GWF Board filed March 26,
1997; sample mailgrams filed March 31, 1997 and April 4, 1997; letter to
Institutional Shareholder Services ("ISS") filed April 3, 1997; letter to
investor community with respect to ISS's recommendations on the Consent
Solicitation (as defined herein) filed April 4, 1997; press kits filed March
20, 1997; letters to analysts filed March 25, 1997; and CEO talking points
filed March 25, 1997; and (g) the description of the Ahmanson Rights contained
in Item 1 of the Ahmanson Registration Statement on Form 8-A dated August 2,
1988, and any amendment or report updating such description filed on or after
the date of this Prospectus to and including the date the Offer is terminated
or Shares are accepted for exchange.     
   
  The following documents filed with the Commission by GWF (File No. 1-4075)
are incorporated herein by reference: (a) GWF's Annual Report on Form 10-K for
the year ended December 31, 1996 (the "1996 GWF 10-K"); (b) GWF's Current
Reports on Form 8-K dated January 22, 1997, January 27, 1997, February 1,
1997, February 20, 1997, March 24, 1997, March 26, 1997, April 3, 1997, April
10, 1997, April 28, 1997, April 30, 1997 and May 5, 1997; (c) GWF's
preliminary Proxy Statement on Schedule 14A dated May 9, 1997; (d) GWF's
Reports on Form 10-K/A dated April 30, 1997 and May 9, 1997; (e) GWF's
earnings release, dated April 16, 1997, for the period ended March 31, 1997,
filed pursuant to Rule 14a-11(c) and 14a-12 of the Exchange Act; (f) the
description of GWF Capital Stock contained in the GWF Registration Statement
on Form S-8 (File No. 333-12655) filed with the Commission on September 25,
1996, and any amendment or report updating such description filed on or after
the date of this Prospectus to and including the date the Offer is terminated
or Shares are accepted for exchange; and (g) the description of the Rights
contained in Item 1 of the GWF Registration Statement on Form 8-A dated
June 25, 1986, as amended by the Form 8-A/A dated June 30, 1995, and any
amendment or report updating such description filed on or after the date of
this Prospectus to and including the date the Offer is terminated or Shares
are accepted for exchange.     
   
  All documents filed by either Ahmanson or GWF pursuant to Section 13(a),
13(c), 14 or 15(d) of the Exchange Act subsequent to the date hereof and prior
to the date the Offer is terminated or Shares are accepted for exchange shall
be deemed to be incorporated herein by reference and to be a part hereof from
the date of such filing. Any statement contained herein or in a document
incorporated or deemed to be incorporated herein by reference shall be deemed
to be modified or superseded for purposes hereof to the extent that a
statement contained herein or in any other subsequently filed document which
also is, or is deemed to be, incorporated herein by reference modifies or
supersedes such statement. Any such statement so modified or superseded shall
not be deemed to constitute a part hereof, except as so modified or
superseded.     
 
                                       5
<PAGE>
 
   
  THIS PROSPECTUS INCORPORATES BY REFERENCE DOCUMENTS NOT PRESENTED HEREIN OR
DELIVERED HEREWITH. SUCH DOCUMENTS ARE AVAILABLE WITHOUT CHARGE UPON REQUEST
TO H. F. AHMANSON & COMPANY, 4900 RIVERGRADE ROAD, IRWINDALE, CALIFORNIA
91706, ATTENTION: INVESTOR RELATIONS. TELEPHONE REQUESTS MAY BE DIRECTED TO
(818) 814-7986.     
                               ----------------
   
  NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR MAKE ANY
REPRESENTATION IN CONNECTION WITH THE OFFER OTHER THAN THOSE CONTAINED OR
INCORPORATED BY REFERENCE IN THIS PROSPECTUS, AND, IF GIVEN OR MADE, SUCH
INFORMATION OR REPRESENTATION MUST NOT BE RELIED UPON AS HAVING BEEN
AUTHORIZED BY AHMANSON. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER OR A
SOLICITATION TO ANY PERSON IN ANY JURISDICTION IN WHICH SUCH OFFER OR
SOLICITATION IS UNLAWFUL. THE DELIVERY OF THIS PROSPECTUS SHALL UNDER NO
CIRCUMSTANCES CREATE ANY IMPLICATION THAT THERE HAS BEEN NO CHANGE IN THE
AFFAIRS OF AHMANSON OR GWF SINCE THE DATE AS OF WHICH INFORMATION IS FURNISHED
OR THE DATE HEREOF.     
   
  FOR NORTH CAROLINA RESIDENTS: THE COMMISSIONER OF INSURANCE OF THE STATE OF
NORTH CAROLINA HAS NOT APPROVED OR DISAPPROVED THIS OFFERING NOR HAS THE
COMMISSIONER PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS.     
   
  THIS PROSPECTUS CONTAINS CERTAIN FORWARD LOOKING STATEMENTS WITH RESPECT TO
THE FINANCIAL CONDITION, RESULTS OF OPERATIONS AND BUSINESS OF AHMANSON
FOLLOWING THE CONSUMMATION OF THE PROPOSED MERGER, INCLUDING STATEMENTS
RELATING TO: (A) THE COST SAVINGS AND ACCRETION TO CASH EARNINGS AND REPORTED
EARNINGS THAT WILL BE REALIZED FROM THE PROPOSED MERGER (SEE "INVESTMENT
CONSIDERATIONS" AND "BACKGROUND OF THE OFFER--REASONS FOR THE COMBINATION");
(B) THE IMPACT ON REVENUES OF THE PROPOSED MERGER, INCLUDING ESTIMATED
ENHANCED REVENUES AND THE IMPACT ON REVENUES OF CONSOLIDATION OF RETAIL
BRANCHES AND OTHER OPERATIONS AS PLANNED (SEE "INVESTMENT CONSIDERATIONS" AND
"BACKGROUND OF THE OFFER--REASONS FOR THE COMBINATION"); AND (C) THE
RESTRUCTURING CHARGES EXPECTED TO BE INCURRED IN CONNECTION WITH THE PROPOSED
MERGER (SEE "PRO FORMA COMBINED FINANCIAL INFORMATION"). THESE FORWARD LOOKING
STATEMENTS INVOLVE CERTAIN RISKS AND UNCERTAINTIES. AMONG THE FACTORS THAT MAY
CAUSE ACTUAL RESULTS TO DIFFER MATERIALLY FROM THOSE CONTEMPLATED BY SUCH
FORWARD LOOKING STATEMENTS INCLUDE, AMONG OTHERS, THE FOLLOWING POSSIBILITIES:
(1) EXPECTED COST SAVINGS FROM THE PROPOSED MERGER CANNOT BE FULLY REALIZED OR
REALIZED WITHIN THE EXPECTED TIME FRAME; (2) REVENUES FOLLOWING THE PROPOSED
MERGER ARE LOWER THAN EXPECTED; (3) COMPETITIVE PRESSURE AMONG DEPOSITORY
INSTITUTIONS INCREASES SIGNIFICANTLY; (4) COSTS OR DIFFICULTIES RELATED TO THE
INTEGRATION OF THE BUSINESSES OF AHMANSON AND GWF ARE GREATER THAN EXPECTED;
(5) CHANGES IN THE INTEREST RATE ENVIRONMENT REDUCE INTEREST MARGINS; (6)
GENERAL ECONOMIC CONDITIONS, EITHER NATIONALLY OR IN THE STATES IN WHICH THE
OPERATIONS OF THE COMBINED COMPANY WILL BE CONCENTRATED, ARE LESS FAVORABLE
THAN EXPECTED; AND (7) LEGISLATION OR REGULATORY CHANGES ADVERSELY AFFECT THE
BUSINESSES IN WHICH THE COMBINED COMPANY WOULD BE ENGAGED. FURTHER INFORMATION
ON OTHER FACTORS WHICH COULD AFFECT THE FINANCIAL RESULTS OF AHMANSON AFTER
THE PROPOSED MERGER IS INCLUDED UNDER THE HEADING "INVESTMENT CONSIDERATIONS"
AND IN THE COMMISSION FILINGS INCORPORATED BY REFERENCE HEREIN.     
 
                                       6
<PAGE>
 
                                    SUMMARY
   
  The information below is qualified in its entirety by the more detailed
information appearing elsewhere in this Prospectus, including the documents
incorporated in this Prospectus by reference. As used in this Prospectus, the
term "Ahmanson" refers to Ahmanson and, unless the context otherwise requires,
its subsidiaries, and the term "GWF" refers to GWF and, unless the context
otherwise requires, its subsidiaries. The term "Surviving Corporation" is
sometimes used herein to refer to Ahmanson following consummation of the
Combination.     
          
AHMANSON     
   
  Ahmanson, a Delaware corporation, conducts its principal business operations
through Home Savings of America, FSB, a federally chartered savings bank ("Home
Savings"). Although Home Savings has traditionally focused on deposit-taking
and residential real estate lending, Home Savings has changed its focus toward
becoming a full-service consumer bank. Home Savings' acquisition of 61 First
Interstate Bank branches has accelerated Home Savings' progress toward
effecting this change. See "Business of Ahmanson".     
   
  At March 31, 1997, Ahmanson had total assets of $49 billion, deposits of $34
billion and stockholders' equity of $2.4 billion. Based on deposits, Ahmanson
was at that date the third largest depository institution in California and the
19th largest in the United States. Home Savings maintains its capital levels
above the "well capitalized" standards established by the Office of Thrift
Supervision.     
   
  Ahmanson has its principal executive offices at 4900 Rivergrade Road,
Irwindale, California 91706, telephone number (818) 960-6311.     
   
GWF     
   
  GWF is a savings and loan holding company organized in 1955 under the laws of
the State of Delaware. The principal assets of GWF are the capital stock of
Great Western Bank, a Federal Savings Bank ("GW Bank"), and Aristar, Inc.
("Aristar"). GW Bank is a federally chartered stock savings bank which has 416
branches in California and Florida. Aristar conducts consumer finance
operations through 502 offices in 23 states, which provide direct installment
loans and related credit insurance services and purchase retail installment
contracts. See "Business of GWF".     
   
  At March 31, 1997, GWF reported total assets of $43 billion, deposits of $28
billion and stockholders' equity of $2.6 billion. Based on deposits, GWF was at
that date the fourth largest depository institution in California and the 25th
largest in the United States.     
   
  GWF has its principal executive offices at 9200 Oakdale Avenue, Chatsworth,
California 91311, telephone number (818) 775-3111.     
   
COMPARISON OF THE AHMANSON AND WAMU OFFERS     
   
  Ahmanson believes that the proposed Combination is superior to the proposed
GWF-WAMU Merger proposal in virtually every relevant respect:     
                              
Implied Market Values..       The Offer has had a higher implied market value
                              on each of the last 20 trading days as well as a
                              higher average market value for the longer time
                              periods (one and three years) used by GWF's own
                              financial advisers.     
                                  
Credibility of Projections..  The WAMU projections have been questioned by a
                              number of independent analysts; the Ahmanson
                              projections have not been questioned.     
 
                                       7
<PAGE>
 
   
Comparison of Projections
to Other  Transactions......
                                 
                              Although WAMU argues that no other transaction
                              can be relevant with respect to projections, the
                              WAMU projections in relation to GWF's net income
                              far exceed those in any other major transaction.
                                                                
Market Position........       An Ahmanson-GWF entity will have a far stronger
                              market position in California and Florida than a
                              WAMU-GWF entity.     
                                  
Interest Rate Risk.....       Ahmanson believes that its exposure to interest
                              rate risk is less than WAMU's exposure.     
   
Market Reaction to the
Announcement of  the Merger  
Proposal...............       Ahmanson--up 11%; WAMU--down 0.5%.     
                                  
Ability to Obtain Cost        Ahmanson has substantially greater geographic
Savings................       overlap.     
   
Capital Leveraging:
Interest Rate and  Credit
Risk................... 
                              Ahmanson intends to maintain its capital leverage
                              at current levels through a repurchase program
                              that has neither credit nor interest rate risk.
                              WAMU proposes to leverage its balance sheet with
                              additional loans, which creates both credit risk
                              and interest rate risk.     
   
Ownership by GWF
Stockholders in the          
 Combined Entity.......       With Ahmanson--62%; with WAMU--50%.     
                             
Goodwill Litigation Claim...  Ahmanson has a claim which GWF's financial
                              advisers valued, based on the trading price of
                              securities of another claimant, at $4.36 per
                              share. WAMU has no equivalent claim.     
   
BACKGROUND OF THE OFFER     
 
 The Original Proposal
   
  On a number of occasions prior to 1996, the current and predecessor chief
executive officers of Ahmanson and GWF have informally discussed the
possibility of a merger of the two companies, although no agreements,
arrangements or understandings resulted from such discussions. These
discussions took place against the background of a rapidly changing banking
industry undergoing substantial consolidation, primarily as a result of
increased competition and a need to reduce costs through economies of scale. In
addition, Ahmanson believes that in recent years the two companies have been
pursuing compatible business strategies. Both Ahmanson and GWF have initiated a
change in focus away from the traditional business of savings institutions
toward consumer banking services and fee-based income. In addition, both
companies have pursued a strategy of branch acquisitions in selected "core"
markets and branch divestitures in non-core markets and have engaged in active
capital management through stock repurchases (GWF suspended its stock
repurchase program upon announcement of its proposed merger with WAMU).     
   
  On February 17, 1997, Charles R. Rinehart, Chairman of the Board and Chief
Executive Officer of Ahmanson, contacted John F. Maher, President and Chief
Executive Officer of GWF, and delivered to him a written proposal for a tax-
free merger of the two companies pursuant to which each outstanding Share would
be converted into 1.05 shares of Ahmanson Common Stock (the "Original
Proposal"). Ahmanson subsequently issued a press release publicly disclosing
the Original Proposal. The market reacted favorably to the announcement of the
Original Proposal, with the Ahmanson Common Stock closing on February 18, 1997
at $44.875, an increase of $4.375 (11%) from its closing price on the previous
trading day. Based on that market     
 
                                       8
<PAGE>
 
   
price, the Original Proposal represented a $12.87 per share, or 38%, premium to
the closing price of GWF Common Stock on the preceding day. GWF failed to
respond to repeated requests to discuss the terms of the Original Proposal with
Ahmanson.     
       
 The GWF/WAMU Merger Agreement
   
  Following the submission of the Original Proposal by Ahmanson on February 17,
1997, GWF conducted negotiations with and provided confidential information to
WAMU and one other party regarding a possible business combination with GWF,
and negotiated an increase in WAMU's proposed exchange ratio. GWF refused,
however, to enter into any discussions with Ahmanson. On March 5, 1997, GWF and
WAMU entered into a merger agreement (the "GWF/WAMU Merger Agreement") pursuant
to which GWF would be merged with and into a subsidiary of WAMU and each
outstanding share of GWF Common Stock would be converted into 0.9 shares of
common stock of WAMU. The Proposed GWF/WAMU Merger is subject to a number of
conditions, including among others that all regulatory and stockholder
approvals be obtained. These conditions are identical in most material respects
to the conditions of the Offer that are not immediately satisfiable by GWF, but
the Proposed GWF/WAMU Merger is also subject to an additional condition which
would not be a condition to the Offer or the Merger, namely that each of GWF
and WAMU shall have received a letter from its accountants to the effect that
the GWF/WAMU Merger will qualify for "pooling of interests" accounting
treatment.     
   
  The GWF/WAMU Merger Agreement provides for the payment of significant "lock-
up" fees in certain circumstances (the "Lock-up Fees"). Ahmanson is challenging
the arrangement for Lock-up Fees through litigation in the Delaware Chancery
Court, although the consummation of the Offer is not conditioned on the success
of Ahmanson's legal challenge. On March 10, 1997, Mr. Rinehart announced that
if Ahmanson succeeds in its challenge to the Lock-up Fees and Ahmanson
completes a merger with GWF, Ahmanson would return the amount of expenses
thereby saved by the combined company by paying a pro rata portion of such
savings to stockholders of GWF for each Share converted in the merger with
Ahmanson. See "Background of the Offer--Litigation".     
   
  The description in this Prospectus of certain provisions of the GWF/WAMU
Agreement is based on publicly filed documents and was not provided by GWF or
WAMU. See "The Background of the Offer--The GWF/WAMU Merger Agreement".     
   
 Ahmanson's Enhanced Merger Proposal     
   
  On March 17, 1997, Ahmanson submitted an enhanced proposal (the "Ahmanson
Merger Proposal") to GWF for a merger of the two companies pursuant to which
each outstanding Share would be converted into between 1.10 and 1.20 shares of
Ahmanson Common Stock. The exact exchange ratio would have been determined by
the same formula that will determine the Exchange Ratio for the Offer, except
that the average market price of Ahmanson Common Stock used to determine the
exchange ratio for the Ahmanson Merger Proposal would have been based on the 20
trading days preceding the approval of the proposed merger by the Office of
Thrift Supervision (the "OTS"). Based on the closing price of the Ahmanson
Common Stock on [    ], 1997 (and assuming the average closing price of the
Ahmanson Common Stock on the NYSE during the 20-day averaging period were equal
to that closing price), the exchange ratio for the Ahmanson Merger Proposal, as
for the Offer, would be [  ] and the Ahmanson Merger Proposal would have had an
implied market value of $[  ] per Share, or $[  ] per Share over the implied
market value of the Proposed GWF/WAMU Merger on such date.     
          
  Although the implied market value of the Ahmanson Merger Proposal is superior
to that of the Proposed GWF/WAMU Merger (based on closing market prices on
[  ], 1997 and on each of the preceding [ ] trading days), GWF continues to
refuse to engage in any discussions with Ahmanson.     
 
 
                                       9
<PAGE>
 
   
  Ahmanson believes that the Ahmanson Merger Proposal represents a unique and
compelling opportunity to enhance value for stockholders of both Ahmanson and
GWF, allowing the combined company to realize substantial cost savings while
enhancing its competitive position in its major markets, generating enhanced
revenues and providing improved services and products to its customers.
Specifically, Ahmanson believes that a merger of the two companies would (a)
result in accretion to cash earnings per share (i.e., reported earnings before
amortization of intangibles) of 8% in 1998 and 20% in 1999, and accretion to
reported earnings per share of 2% for 1999, (assuming the maximum Exchange
Ratio of 1.20), and accretion to cash earnings per share of 14% in 1998 and 27%
in 1999 and accretion to reported earnings per share of 5% in 1999 (assuming
the minimum Exchange Ratio of 1.10), (b) allow the combined company to realize
cost savings estimated at approximately $450 million per year (Ahmanson expects
to be able to achieve substantially all of such annual savings within 15 months
after closing the Merger), (c) enhance the combined company's competitive
position in its major markets in California, where the combined company would
rank third (with about $50 billion in deposits), and in Florida, where the
combined company would rank fifth (with about $10 billion in deposits),
(d) generate enhanced revenues for the combined company of at least $50 million
annually by 1998 and (e) provide additional scale in key business lines
(mortgage lending, loan servicing, consumer and small business lending and
investment services). See "Background of the Offer--Reasons for the
Combination". Based on the advice of Sullivan & Cromwell, special counsel to
Ahmanson, as well as Ahmanson's experience in obtaining approvals for other
transactions, Ahmanson believes that it will be able to obtain the regulatory
approvals required for the Combination on a timely basis and without imposition
of any condition that would have a material adverse effect on the combined
company. See "The Offer--Regulatory Approvals Condition".     
   
  Ahmanson believes that GWF's asserted reasons for favoring the Proposed
GWF/WAMU Merger were erroneous in a number of significant respects. There is no
indication in GWF's public filings that the GWF Board considered the
consistently higher implied market value of the Ahmanson Merger Proposal
relative to the Proposed GWF/WAMU Merger. Ahmanson also believes that an
Ahmanson/GWF merger can generate, through cost savings and revenue
enhancements, considerably greater cash earnings per GWF Share than the
Proposed GWF/WAMU Merger. See "Background of the Offer--Comparison of the
Proposals".     
       
          
THE OFFER     
   
  Ahmanson hereby offers, upon the terms and subject to the conditions set
forth herein and in the related Letter of Transmittal (which, together with any
amendments or supplements hereto or thereto, collectively constitute the
"Offer"), to exchange a number of shares of Ahmanson Common Stock equal to the
Exchange Ratio, with cash being paid in lieu of fractional shares, for each
outstanding Share validly tendered on or prior to the Expiration Date and not
withdrawn. The term "Expiration Date" shall mean 12:00 midnight, New York City
time, on [      ], 1997, unless and until Ahmanson extends the period of time
for which the Offer is open, in which event the term "Expiration Date" shall
mean the latest time and date at which the Offer, as so extended by Ahmanson,
shall expire. Each tendering stockholder who would otherwise be entitled to a
fractional share of Ahmanson Common Stock will receive cash in an amount
(rounded to the nearest $.01) equal to such fraction (expressed as a decimal
and rounded to the nearest 0.01 of a share) times the per share closing price
of Ahmanson Common Stock on the NYSE on the NYSE trading day immediately
preceding the date such stockholder's Shares are accepted for exchange by
Ahmanson. See "The Offer--General".     
   
  The purpose of the Offer is for Ahmanson to acquire control of, and
thereafter the entire common equity interest in, GWF. Ahmanson intends, as
promptly as practicable after consummation of the Offer, to seek to have GWF
consummate the Merger in which each outstanding Share (except for treasury
shares of GWF and Shares beneficially owned directly or indirectly by Ahmanson
or its subsidiaries other than in a fiduciary capacity) would be converted into
a number of shares of Ahmanson Common Stock equal to the Exchange Ratio. See
"The Offer--Purpose of the Offer; the Merger".     
 
 
                                       10
<PAGE>
 
   
  Ahmanson's obligation to exchange shares of Ahmanson Common Stock for Shares
pursuant to the Offer is conditioned upon satisfaction of the Minimum Tender
Condition, the Ahmanson Stockholder Approval Condition, the Rights Plan and
DGCL 203 Condition, the GWF/WAMU Merger Agreement Condition and the Regulatory
Approvals Condition (in each case as defined on the cover page of this
Prospectus) and the other conditions set forth under "The Offer--Certain Other
Conditions to the Offer". The conditions to the Offer that are not immediately
satisfiable by GWF are identical in all material respects to the conditions to
the competing proposal to effect the Proposed GWF/WAMU Merger, including among
others that all regulatory and stockholder approvals be obtained, although the
competing proposal is also subject to an additional condition which is not a
condition to the Offer, namely that each of GWF and WAMU shall have received a
letter from its accountants to the effect that the Proposed GWF/WAMU Merger
will qualify for "pooling of interests" accounting treatment.     
   
  Subject to the applicable rules and regulations of the Commission, Ahmanson
expressly reserves the right, in its sole discretion, at any time or from time
to time, to delay acceptance for exchange or, regardless of whether such Shares
were theretofore accepted for exchange, exchange of any Shares pursuant to the
Offer or to amend or terminate the Offer and not accept for exchange or
exchange any Shares not theretofore accepted for exchange, or exchanged, upon
the failure of any of the conditions of the Offer to be satisfied. Ahmanson
reserves the absolute right to waive any defect or irregularity in the tender
of any securities and to waive any of the conditions to the Offer (other than
the Ahmanson Stockholder Approval Condition and the Regulatory Approvals
Condition). Although Ahmanson reserves the right to do so, Ahmanson does not
currently intend to waive the Rights Plan and DGCL 203 Condition (insofar as it
relates to Section 203 of the DGCL) unless it determines that doing so would
not prevent it from consummating the Merger promptly after consummating the
Offer; Ahmanson also does not currently intend to waive the Rights Plan and
DGCL 203 Condition (insofar as it relates to the Rights) unless it determines
that the dilution to Ahmanson's stockholders that would result from the Rights
becoming exercisable as a consequence of the Offer and the Merger would not be
material in the context of the entire transaction. See "The Offer--Minimum
Tender Condition," "--Ahmanson Stockholder Approval Condition," "--Rights Plan
and DGCL 203 Condition," "--GWF/WAMU Merger Agreement Condition," "--Regulatory
Approvals Condition" and "--Certain Other Conditions of the Offer". Waiver or
amendment of any of these conditions may require an extension of the Offer.
       
  Stockholders will be required to tender one Right for each Share tendered in
order to effect a valid tender of Shares, unless the Rights Plan and DGCL 203
Condition (insofar as it relates to the Rights) has been satisfied or waived.
Unless the GWF Distribution Date occurs, a tender of Shares will constitute a
tender of the associated Rights. See "The Offer--Rights Plan and DGCL 203
Condition".     
   
 Timing of the Offer     
   
  The Offer is currently scheduled to expire on [  ], 1997; however, it is
Ahmanson's current intention to extend the Offer from time to time as necessary
until all conditions to the Offer have been satisfied or waived. See "The
Offer--Extension, Termination and Amendment". Ahmanson expects that the
Ahmanson Stockholder Approval Condition will be satisfied by [  ], 1997 (the
date on which it has called a special meeting of its stockholders (the
"Ahmanson Meeting") to approve the Ahmanson Charter Amendment and the issuance
of shares of Ahmanson Common Stock pursuant to the Offer and the Merger) and
that the other conditions to the Offer will be satisfied once the Regulatory
Approvals Condition, the GWF/WAMU Merger Agreement Condition and the Rights
Plan and DGCL 203 Condition are satisfied.     
   
  The Offer is conditioned on obtaining all required regulatory approvals (the
"Requisite Regulatory Approvals"). The principal Requisite Regulatory Approval
is approval of the OTS under the Home Owners' Loan Act. As described under "The
Offer--Regulatory Approvals Condition", Ahmanson filed an application seeking
this OTS approval on February 24, 1997, and understands that the OTS does not
intend to hold any public hearing with respect to the OTS application. Based on
the advice of Sullivan & Cromwell, special counsel to Ahmanson, as well as
Ahmanson's experience in obtaining approvals for other transactions, Ahmanson
believes that it will be able to obtain the OTS approval on a timely basis and
in a time frame substantially identical to that in which WAMU would be able to
obtain the OTS approval required for the Proposed GWF/WAMU Merger and without
the imposition of any condition that would have a material adverse effect on
    
                                       11
<PAGE>
 
   
the combined company. However, the regulatory approval process is such that
Ahmanson can give no definitive assurance that any Requisite Regulatory
Approval will be obtained or, if obtained, will be obtained on a timely basis
and without the imposition of other material conditions. See "The Offer--
Regulatory Approvals Condition".     
   
  If GWF schedules a special stockholders meeting (the "GWF Special Meeting")
to vote on the GWF/WAMU Merger Agreement and GWF's stockholders do not approve
the GWF/WAMU Merger Agreement, the GWF/WAMU Merger Agreement Condition would
then be satisfied. Ahmanson believes that at that point (and in light of the
GWF stockholders' ability, if necessary, to adopt a by-law accelerating the
next annual meeting of GWF stockholders to January 2, 1998 and to elect a
majority of the Board of Directors, including those to be elected at the GWF
Annual Meeting, by that date), the Board of Directors of GWF (the "GWF Board")
would respect the vote of GWF's stockholders and remove the obstacles it is
maintaining to the Offer and the Merger, thereby satisfying the Rights Plan and
DGCL 203 Condition. Ahmanson also intends to pursue its currently pending
litigation in order to satisfy the Rights Plan and DGCL 203 Condition. For
further information about the Rights Plan and DGCL 203 Condition and Ahmanson's
plans for satisfying it, see "The Offer--Rights Plan and DGCL 203 Condition".
       
 Extension, Termination and Amendment     
   
  Ahmanson expressly reserves the right, in its sole discretion, at any time or
from time to time, to extend the period of time during which the Offer is to
remain open by giving oral or written notice of such extension to the Exchange
Agent, which extension must be announced no later than 9:00 A.M., New York City
time, on the next business day after the previously scheduled Expiration Date.
There can be no assurance that Ahmanson will exercise its right to extend the
Offer. However, it is Ahmanson's current intention to extend the Offer until
all conditions have been satisfied or waived. See "The Offer--Extension,
Termination and Amendment". During any such extension, all Shares previously
tendered and not withdrawn will remain subject to the Offer, subject to the
right of a tendering stockholder to withdraw his Shares. See "The Offer--
Withdrawal Rights".     
   
 Exchange of Shares; Delivery of Ahmanson Common Stock     
   
  Upon the terms and subject to the conditions of the Offer, the acceptance for
exchange and the exchange of all outstanding Shares validly tendered and not
withdrawn will be made promptly after the Expiration Date. See "The Offer--
Exchange of Shares; Delivery of Ahmanson Common Stock".     
   
 Withdrawal Rights     
   
  Tenders of Shares made pursuant to the Offer are irrevocable, except that
Shares tendered pursuant to the Offer may be withdrawn at any time prior to the
Expiration Date, and, unless previously accepted for exchange by Ahmanson
pursuant to the Offer, may also be withdrawn at any time after [      ], 1997.
See "The Offer--Withdrawal Rights".     
   
 Procedure for Tendering     
   
  For a stockholder validly to tender Shares pursuant to the Offer, (i) a
properly completed and duly executed Letter of Transmittal (or manually
executed facsimile thereof), together with any required signature guarantees,
or an Agent's Message (as defined herein) in connection with a book-entry
transfer, and any other required documents, must be transmitted to and received
by the Exchange Agent at one of its addresses set forth on the back cover of
this Prospectus and certificates for tendered Shares must be received by the
Exchange Agent at such address or such Shares must be tendered pursuant to the
procedures for book-entry tender set forth under "The Offer--Procedure for
Tendering" (and a confirmation of receipt of such tender received), in each
case prior to the Expiration Date, or (ii) such stockholder must comply with
the guaranteed delivery procedure set forth under "The Offer--Procedure for
Tendering". As noted above, stockholders will be required to tender one     
 
                                       12
<PAGE>
 
   
Right for each Share tendered in order to effect a valid tender of Shares,
unless the Rights Plan and DGCL 203 Condition has been satisfied or waived.
Unless the GWF Distribution Date occurs, a tender of Shares will constitute a
tender of the associated Rights.     
   
  THE METHOD OF DELIVERY OF SHARE CERTIFICATES AND ALL OTHER REQUIRED
DOCUMENTS, INCLUDING DELIVERY THROUGH ANY BOOK-ENTRY TRANSFER FACILITY, IS AT
THE OPTION AND RISK OF THE TENDERING STOCKHOLDER, AND THE DELIVERY WILL BE
DEEMED MADE ONLY WHEN ACTUALLY RECEIVED BY THE EXCHANGE AGENT. IF DELIVERY IS
BY MAIL, REGISTERED MAIL WITH RETURN RECEIPT REQUESTED, PROPERLY INSURED, IS
RECOMMENDED. IN ALL CASES, SUFFICIENT TIME SHOULD BE ALLOWED TO ENSURE TIMELY
DELIVERY.     
   
 Certain Federal Income Tax Consequences     
   
  In the opinion of Sullivan & Cromwell, special counsel to Ahmanson, exchanges
of Shares for Ahmanson Common Stock pursuant to the Offer and the Merger will
be treated for federal income tax purposes as exchanges pursuant to a plan of
reorganization within the meaning of the Internal Revenue Code of 1986, as
amended (the "Code"). Consequently, no gain or loss will be recognized by
holders of Shares upon such exchanges, except with respect to the receipt of
cash in lieu of fractional shares of Ahmanson Common Stock. This opinion is
based on Sullivan & Cromwell's view that the Offer and the Merger should be
treated as a single transaction and on certain assumptions, including that (a)
the continuity of shareholder interest requirement applicable to corporate
reorganizations (which requires a continuing equity interest in Ahmanson by
holders owning a significant percentage of the stock of GWF prior to the
consummation of the Offer) will be satisfied, taking into account any holders
that exercise dissenters' rights, if any, (b) Ahmanson will continue GWF's
historic business or will use a significant portion of GWF's historic business
assets in a business and (c) the Offer and the Merger will generally be
consummated as contemplated by this Prospectus. Although there are currently no
binding agreements that would ensure that the stockholders of GWF will have a
continuing equity interest in Ahmanson following the consummation of the
Combination, Ahmanson believes that it is likely that the stockholders of GWF
will retain a sufficient amount of stock of Ahmanson to satisfy the continuity
of interest requirement.     
   
  In rendering their opinion, Sullivan & Cromwell have further assumed that (a)
upon consummation of the Offer, there will be no significant contingencies
preventing the prompt consummation of the Merger, (b) upon consummation of the
Offer, Ahmanson will not have waived any of the conditions relating to its
obligation to consummate the Offer in a manner that could prevent a prompt
consummation of the Merger, (c) the Merger will in fact be consummated promptly
after the consummation of the Offer and in no event more than one year after
the consummation of the Offer and (d) either GWF will have, at the time the
Offer is consummated, entered into an agreement with Ahmanson requiring
Ahmanson to effect the Merger or the "binding commitment" test discussed below
will not apply to the Offer and the Merger. A significant delay in the
consummation of the Merger would substantially increase the risk that the Offer
will not qualify as part of a reorganization within the meaning of Section
368(a)(1)(A) of the Code and the absence of the Merger would mean that the
Offer was not part of a reorganization.     
   
  In deciding whether two steps are part of a single transaction qualifying as
a reorganization, some courts have applied the so-called "binding commitment"
test. Under that test, two steps will be integrated only if, at the time that
the first step is consummated, there is a binding commitment to consummate the
second step. If the "binding commitment" test were applied to the Offer and the
Merger and GWF has not at the time the Offer is consummated entered into an
agreement with Ahmanson requiring Ahmanson to effect the Merger, the Offer and
the Merger would not be treated as a single transaction, and the Offer would
not qualify as part of a reorganization. Although the matter is not free from
doubt, in the opinion of Sullivan & Cromwell, the "binding commitment" test
should not be applied to determine whether the Offer and the Merger should be
treated as a single transaction.     
 
 
                                       13
<PAGE>
 
   
  Assuming that the Merger qualifies as a reorganization under the Code, no
gain or loss will be recognized by Ahmanson or GWF as a result of the Offer and
the Merger.     
   
  If the Offer and the Merger together qualify as a reorganization within the
meaning of Section 368(a)(1)(A) of the Code, no gain or loss will be recognized
by a U.S. Holder (as defined under "The Offer--Certain Federal Income Tax
Consequences"), except with respect to a U.S. Holder who receives cash in lieu
of fractional shares of Ahmanson Common Stock.     
   
  If the Merger is not consummated, or if the Merger is consummated but the
Offer is treated as a separate transaction for federal income tax purposes,
exchanges pursuant to the Offer will be taxable transactions for federal income
tax purposes. In that case, each U.S. Holder exchanging Shares for shares of
Ahmanson Common Stock pursuant to the Offer will recognize gain or loss for
federal income tax purposes measured by the difference between such U.S.
Holder's adjusted basis in the Shares exchanged and the sum of the fair market
value of Ahmanson Common Stock received by such U.S. Holder pursuant to the
Offer and any cash received by such U.S. Holder in lieu of fractional shares of
Ahmanson Common Stock.     
   
  If the Offer is a taxable transaction, the Merger itself would be a
reorganization within the meaning of Section 368(a)(1)(A) of the Code if the
continuity of interest requirement is satisfied in the Merger. For advance
ruling purposes, guidelines published by the Internal Revenue Service would
require that stockholders of GWF receive in the Merger stock of Ahmanson having
a value equal to at least 50% of the value of all of the stock of GWF
outstanding prior to the Merger. If the Offer is treated as a separate
transaction for federal income tax purposes, however, stock of GWF held by
Ahmanson prior to the Merger as a result of the Offer should count towards
establishing that the Merger satisfies the continuity of interest requirement.
If the continuity of interest requirement is satisfied in the Merger, a U.S.
Holder receiving Ahmanson Common Stock in the Merger would be subject to the
rules concerning reorganizations described above with respect to such Ahmanson
Common Stock, but not with respect to any Ahmanson Common Stock received by
such U.S. Holder pursuant to the Offer.     
   
  All stockholders should carefully read the discussion of the material federal
income tax consequences of the Offer under "The Offer--Certain Federal Income
Tax Consequences" and are urged to consult with their own tax advisors as to
the federal, state, local and foreign tax consequences in their particular
circumstances.     
   
 Effect of Offer on Market for Shares     
   
  The exchange of Shares pursuant to the Offer will reduce the number of
holders of Shares and the number of Shares that might otherwise trade publicly
and could adversely affect the liquidity and market value of the remaining
Shares held by the public.     
   
  The Shares are listed on the NYSE, the PSE and the London Stock Exchange.
Depending on the number of Shares acquired pursuant to the Offer, following
consummation of the Offer, the Shares may no longer meet the requirements of
such exchanges for continued listing, and the Shares may no longer constitute
"margin securities" for purposes of the Federal Reserve Board's margin
regulations, in which event the Shares could no longer be used as collateral
for margin loans made by brokers. See "The Offer--Effect of Offer on Market for
Shares; Registration Under the Exchange Act".     
   
  For a description of the treatment of Shares and of shares of preferred stock
of GWF in the Merger, see "The Offer--Purpose of the Offer; the Merger".     
       
ACCOUNTING TREATMENT
   
  If the Combination is consummated, Ahmanson would account for the acquisition
of GWF using the purchase method of accounting. Accordingly, the consideration
to be paid in the Combination would be allocated to assets acquired and
liabilities assumed based on their estimated fair values at the consummation
date. Net income (or loss) of GWF prior to the consummation date would not be
included in net income of the combined     
 
                                       14
<PAGE>
 
   
company. See "Background of the Offer--Reasons for the Combination--Purchase
Accounting; Stock Repurchase Program".     
       
COMPARISON OF RIGHTS OF THE HOLDERS OF GWF COMMON STOCK AND AHMANSON COMMON
STOCK
   
  Assuming the Combination is consummated, stockholders of GWF would become
stockholders of Ahmanson. As each of GWF and Ahmanson is organized under the
laws of Delaware, differences in the rights of the holders of Ahmanson Common
Stock and GWF Common Stock arise solely from various provisions of the
certificate of incorporation and by-laws of each of GWF and Ahmanson, and from
differences between the Rights Agreement, dated June 27, 1995 (the "GWF Rights
Plan"), between GWF and First Chicago Trust Company of New York, as Rights
Agent, and the Rights Agreement, dated as of July 26, 1988, between Ahmanson
and Union Bank, as Rights Agent (the "Ahmanson Rights Plan"). For a discussion
of certain similarities and differences between the rights of holders of GWF
Common Stock and the rights of holders of Ahmanson Common Stock, see
"Comparison of Rights of Holders of GWF Common Stock and Ahmanson Common
Stock".     
 
DESCRIPTION OF AHMANSON CAPITAL STOCK
   
  The authorized capital stock of Ahmanson consists of 220,000,000 shares of
Ahmanson Common Stock, par value $.01 per share (which would be increased to
350,000,000 if the Ahmanson Charter Amendment is approved), and 10,000,000
shares of preferred stock, par value $.01 per share. As of March 31, 1997,
there were 100,595,547 shares of Ahmanson Common Stock, 780,000 shares of 8.40%
Preferred Stock, Series C, and 575,000 shares of 6% Cumulative Convertible
Preferred Stock, Series D, of Ahmanson issued and outstanding (such series of
preferred stock, the "Ahmanson Preferred Stock"). The outstanding shares of
Ahmanson Preferred Stock are represented by depositary shares (the "Ahmanson
Depositary Shares"), which are listed on the NYSE. 1,100,000 shares of Junior
Participating Cumulative Preferred Stock are designated but unissued with
respect to the Ahmanson Rights Plan.     
   
  At the Ahmanson Meeting, holders of Ahmanson Common Stock would be asked to
consider and vote upon the Ahmanson Charter Amendment. The Ahmanson Charter
Amendment is necessary to permit the issuance of Ahmanson Common Stock required
for completion of the Offer and the Merger.     
 
  Holders of shares of Ahmanson Common Stock are entitled to one vote per share
for each share held. Subject to the rights of holders of shares of the
outstanding Ahmanson Preferred Stock, holders of shares of Ahmanson Common
Stock have equal rights to participate in dividends when declared and, in the
event of liquidation, in the net assets of Ahmanson available for distribution
to stockholders. Ahmanson may not declare any dividends on the Ahmanson Common
Stock unless full preferential amounts to which holders of the Ahmanson
Preferred Stock are entitled have been paid or declared and set apart for
payment. Ahmanson is also subject to certain contractual and regulatory
restrictions on the payment of dividends.
 
  Each share of Ahmanson Common Stock currently has attached thereto stock
purchase rights ("Ahmanson Rights") issued under the Ahmanson Rights Plan.
 
  For additional information concerning the capital stock of Ahmanson, see
"Description of Ahmanson Capital Stock".
       
MARKET PRICES
   
  The Ahmanson Common Stock is listed on the NYSE and the PSE under the symbol
"AHM" and the GWF Common Stock is listed on the NYSE and the PSE under the
symbol "GWF" and on the London Stock Exchange. On [      ], 1997, the last
trading day prior to the date of this Prospectus, the closing price per share
of Ahmanson Common Stock was $[     ] and the closing price per Share was
$[  ]. Based on the closing price of the Ahmanson Common Stock on such date
(and assuming the average closing price of the Ahmanson     
 
                                       15
<PAGE>
 
   
Common Stock on the NYSE during the Averaging Period is equal to the closing
price on such date), the Exchange Ratio would be [    ] and the Offer would
have an implied market value of $[    ] per Share. This represents a premium of
$[   ] per Share, or [  ]%, over the implied market value of the Proposed
GWF/WAMU Merger on such date. On each of the [  ] trading days preceding
[    ], 1997, the implied market value of the Ahmanson Merger Proposal was
higher than the implied market value of the Proposed GWF/WAMU Merger.     
   
  Changes in the market price of Ahmanson Common Stock before the date the
Shares are accepted for exchange by Ahmanson pursuant to the Offer would affect
the number of shares or the market value of Ahmanson Common Stock to be
received in the Offer. THERE CAN BE NO ASSURANCE AS TO THE MARKET PRICE OF THE
AHMANSON COMMON STOCK AT ANY TIME BEFORE, AT OR AFTER THE EXPIRATION DATE OR
THE DATE OF SUCH ACCEPTANCE BY AHMANSON. STOCKHOLDERS ARE URGED TO OBTAIN
CURRENT MARKET QUOTATIONS FOR AHMANSON COMMON STOCK AND THE SHARES.     
   
THE EXCHANGE AGENT     
   
  [      ] has been appointed exchange agent (the "Exchange Agent") in
connection with the Offer. The Letter of Transmittal (or facsimile copies
thereof) and certificates for Shares should be sent by each tendering
stockholder of Shares or his broker, dealer, bank or other nominee to the
Exchange Agent at the addresses set forth on the back cover of this Prospectus.
       
REQUEST FOR ASSISTANCE AND ADDITIONAL COPIES     
   
  Requests for information or assistance concerning the Offer may be directed
to the Dealer Managers or the Information Agent at their addresses set forth on
the back cover of this Prospectus. Requests for additional copies of this
Prospectus and the Letter of Transmittal should be directed to the Information
Agent.     
   
ACTIONS RELATED TO THE OFFER     
   
 OTS Application     
   
  On February 24, 1997, Ahmanson filed an application with the OTS seeking the
Requisite Regulatory Approval of the OTS. See "The Offer--Regulatory Approvals
Condition".     
   
 The Consent Solicitation     
   
  Prior to Ahmanson's announcement of the Offer, Ahmanson conducted a
solicitation of written consents from GWF stockholders to various proposals. A
description of these proposals and a summary of the results of the consent
solicitation are set forth under "Background of the Offer--Actions Related to
the Offer--The Consent Solicitation".     
   
 The Proxy Solicitation     
   
  On February 18, 1997, Ahmanson announced that it intended to solicit proxies
from stockholders of GWF to elect as directors of GWF at the 1997 annual
meeting of stockholders of GWF (the "GWF Annual Meeting") three persons
nominated by Ahmanson and committed to pursuing merger proposals with a view to
maximizing stockholder value (the "Ahmanson Nominees"). The Ahmanson Nominees
have agreed that as directors of GWF they will act "on behalf of all of the
stockholders of Great Western . . . and will in no way be controlled by or
acting at the direction of Ahmanson". Ahmanson has also proposed for adoption
at the GWF Annual Meeting five amendments to the by-laws of GWF (the "GWF By-
laws") intended to ensure that Ahmanson's proposal for a merger with GWF is
dealt with fairly and in accordance with sound principles of corporate
governance and that the views of GWF stockholders and the Ahmanson Nominees are
considered by the entire GWF Board. GWF has scheduled the GWF Annual Meeting
for June 13, 1997. See "Background of the Offer--Actions Related to the Offer--
The Proxy Solicitation" and "--Litigation".     
 
                                       16
<PAGE>
 
 
CAPITALIZATION OF AHMANSON
   
  The following table sets forth the capitalization of Ahmanson and its
subsidiaries as of March 31, 1997 and as adjusted to give effect to the
Combination based on (a) the issuance of 161,189,772 shares of Ahmanson Common
Stock, assuming an Exchange Ratio of 1.20 and the closing market price of
Ahmanson Common Stock of $39.375 on May 9, 1997 and assuming that none of the
outstanding options on GWF Common Stock are exercised, (b) the conversion of
GWF 8.30% Preferred Stock (as defined herein) into New Ahmanson 8.30% Preferred
Stock (as defined herein) and (c) the additional assumptions described under
"Pro Forma Combined Financial Information".     
<TABLE>   
<CAPTION>
                                                   MARCH 31,    MARCH 31,
                                                     1997         1997
                                                   (ACTUAL)    (ADJUSTED)
                                                  -----------  -----------
                                                        (IN THOUSANDS)
<S>                                               <C>          <C>          <C>
Deposits and borrowings(1)
  Deposits....................................... $34,399,125  $62,557,456
  Short-term borrowings under agreements to
   repurchase securities sold....................   2,325,000    6,808,584
  Other short-term borrowings....................     458,640    1,745,582
  FHLB advances..................................   2,435,918    4,234,216
  FHLB notes.....................................     900,000      900,000
  Other term notes...............................   3,238,489    3,238,489
  Medium-term floating rate notes................     299,259      299,259
  Subordinated debt..............................     721,785      721,785
  Senior debt....................................     248,084      248,084
  GWF long-term borrowings.......................         --     3,092,335
  Other long-term borrowings.....................       3,919        3,919
                                                  -----------  -----------
    Total deposits and borrowings................  45,030,219   83,849,709
Company-obligated mandatorily redeemable capital
 securities of subsidiary trust..................     148,335      548,335
Preferred stock, $.01 par value; authorized
 10,000,000 shares:
  8.40% Series C, outstanding 780,000 shares;
   liquidation preference $195,000...............     195,000      195,000
  6% Cumulative Convertible Series D, outstanding
   575,000 shares; liquidation preference
   $287,500......................................     287,500      287,500
  8.30% Cumulative Preferred stock, outstanding
   660,000 shares; liquidation preference
   $165,000......................................         --       165,000
Common stock, $.01 par value; authorized
 220,000,000 shares(2):
 outstanding 100,595,547 after deducting
 19,533,362 shares in treasury...................       1,006        2,623
Additional paid-in capital.......................     119,434    6,464,673
Net unrealized loss on securities available for
 sale, net of taxes..............................    (121,123)    (121,123)
Retained earnings................................   1,919,964    1,919,964
                                                  -----------  -----------
                                                    2,401,781    8,913,637
Unearned compensation............................      (2,839)      (2,839)
                                                  -----------  -----------
    Total stockholders' equity...................   2,398,942    8,910,798
                                                  -----------  -----------
    Total capitalization......................... $47,577,496  $93,308,842
                                                  ===========  ===========
</TABLE>    
- --------
(1) Deposits and borrowings are subject to fluctuation from time to time.
(2) After giving effect to the Ahmanson Charter Amendment, Ahmanson's
    authorized shares of Ahmanson Common Stock would be 350,000,000.
 
                                       17
<PAGE>
 
 
COMPARISON OF CERTAIN UNAUDITED PER SHARE DATA
   
  The following table sets forth certain historical, pro forma combined and pro
forma equivalent per share financial information for the common stock of
Ahmanson and of GWF. The pro forma amounts included in the table assume
completion of the Combination and are based on the purchase method of
accounting, a preliminary determination and allocation of the total purchase
price and the assumptions described under "Pro Forma Combined Financial
Information". This information should be read in conjunction with and is
qualified in its entirety by the consolidated financial statements and
accompanying notes of Ahmanson and GWF included in the documents described
under "Incorporation of Certain Information by Reference" (but which, in the
case of GWF, are not covered by the report of GWF's independent accountants for
purposes of this Prospectus) and the pro forma combined financial statements
and accompanying discussion and notes set forth under "Pro Forma Combined
Financial Information". The pro forma amounts in the table below are presented
for information purposes and are not necessarily indicative of the financial
position or the results of operations of the combined company that actually
would have occurred had the Combination been consummated as of the dates or for
the periods presented. The pro forma amounts are also not necessarily
indicative of the future financial position or future results of operations of
the combined company. In particular, Ahmanson expects to achieve significant
cost savings as a result of the Combination. These annual cost savings, if they
are realized (which cannot be assured as to amount or timing), would
significantly reduce noninterest expense and increase net income. Additionally,
Ahmanson believes that opportunities exist to enhance certain revenues through
the expansion of consumer and business loans, cash management services, retail
banking and investment sales generated through GW Bank branches. These revenue
enhancements, if they are realized (which cannot be assured as to amount or
timing), would increase net interest income or fee income and increase net
income. See "Background of the Offer; Reasons for the Combination". No
adjustment has been included in the pro forma amounts for such cost savings or
revenue enhancements.     
<TABLE>   
<CAPTION>
                                           THREE MONTHS ENDED    YEAR ENDED
                                             MARCH 31, 1997   DECEMBER 31, 1996
                                           ------------------ -----------------
   <S>                                     <C>                <C>
   AHMANSON COMMON STOCK
   INCOME PER COMMON SHARE (FULLY
   DILUTED):
     Historical..........................        $ 0.87            $ 0.91(1)
     Pro forma combined..................          0.44              0.14
   DIVIDENDS DECLARED PER COMMON SHARE:
     Historical..........................        $ 0.22            $ 0.88
     Pro forma combined(2)...............          0.22              0.88
   BOOK VALUE PER COMMON SHARE (AT PERIOD
   END):
     Historical..........................        $19.05            $19.09
     Pro forma combined(3)...............         31.57               --
   GWF COMMON STOCK
   INCOME PER COMMON SHARE (FULLY
   DILUTED):
     Historical..........................        $ 0.44            $ 0.69(1)
     Pro forma equivalent(4).............          0.53              0.17
   DIVIDENDS DECLARED PER COMMON SHARE:
     Historical..........................        $ 0.25            $ 0.98
     Pro forma equivalent(4).............          0.26              1.06
   BOOK VALUE PER COMMON SHARE (AT PERIOD
   END):
     Historical..........................        $17.55            $17.63
     Pro forma equivalent(4).............         37.88               --
</TABLE>    
- -------
(1) Income per common share for both Ahmanson and GWF in 1996 was significantly
    affected by a special assessment in the third quarter to recapitalize the
    Savings Association Insurance Fund which was mandated by federal
    legislation.
(2) Amounts represent historical dividends per common share. For a discussion
    of Ahmanson's current and future dividend policy, see "Market Prices and
    Dividends--Ahmanson".
   
(3) Amount is calculated by dividing total pro forma common stockholders'
    equity by the sum of total outstanding shares of Ahmanson Common Stock plus
    new shares of Ahmanson Common Stock to be issued in the Combination (based
    on the number of shares of GWF Common Stock outstanding at March 31, 1997,
    excluding Shares beneficially owned by Ahmanson, and an assumed Exchange
    Ratio of 1.20).     
   
(4) Amounts are calculated by multiplying Ahmanson's pro forma combined amounts
    by an assumed Exchange Ratio of 1.20.     
 
 
                                       18
<PAGE>
 
SELECTED CONSOLIDATED FINANCIAL DATA OF AHMANSON
   
  The selected consolidated financial data of Ahmanson set forth below have
been derived from the audited consolidated financial statements of Ahmanson for
each of the years in the five-year period ended December 31, 1996 and the
condensed consolidated statement of financial condition (unaudited) and
condensed consolidated statement of operations (unaudited) at and for the three
months ended March 31, 1997. The selected consolidated financial data set forth
below should be read in conjunction with and is qualified in its entirety by
reference to the financial statements and accompanying notes contained in the
1996 Ahmanson 10-K and Ahmanson's Current Report on Form 8-K dated April 8,
1997, which are incorporated by reference herein. See "Incorporation of Certain
Information by Reference".     
 
<TABLE>   
<CAPTION>
                                                                 AT DECEMBER 31,
                                           -----------------------------------------------------------
                         AT MARCH 31, 1997    1996        1995        1994        1993        1992
                         ----------------- ----------- ----------- ----------- ----------- -----------
                                                        (IN THOUSANDS)
<S>                      <C>               <C>         <C>         <C>         <C>         <C>
SUMMARY OF FINANCIAL
 CONDITION
 Cash and investment
  securities............    $ 1,423,531    $ 1,876,435 $ 1,645,450 $ 2,773,573 $ 3,906,044 $ 2,362,563
 Loans and mortgage-
  backed securities.....     45,338,937     46,085,670  47,407,521  48,791,165  44,624,365  42,878,383
 Real estate............        381,119        395,428     460,421     475,264     623,519   1,127,271
 Premises and
  equipment.............        412,652        424,567     410,947     614,817     673,879     686,693
 Goodwill and other
  intangible assets.....        298,887        308,083     147,974     468,542     428,444     478,017
 Other assets...........        842,000        811,861     457,273     603,432     614,994     607,580
                            -----------    ----------- ----------- ----------- ----------- -----------
   Total assets.........    $48,697,126    $49,902,044 $50,529,586 $53,726,793 $50,871,245 $48,140,507
                            ===========    =========== =========== =========== =========== ===========
 Deposits...............    $34,399,125    $34,773,945 $34,244,481 $40,655,016 $38,018,653 $39,273,192
 Borrowings.............     10,631,094     11,580,521  12,236,428   9,176,085   8,879,345   4,978,583
 Other liabilities......      1,119,630        966,116     991,755     931,091   1,024,216   1,143,088
 Company-obligated
  Capital Securities of
  Subsidiary Trust......        148,335        148,413         --          --          --          --
 Stockholders' equity...      2,398,942      2,433,049   3,056,922   2,964,601   2,949,031   2,745,644
                            -----------    ----------- ----------- ----------- ----------- -----------
   Total liabilities,
    Company-obligated
    Capital Securities
    of Subsidiary Trust
    and stockholders'
    equity..............    $48,697,126    $49,902,044 $50,529,586 $53,726,793 $50,871,245 $48,140,507
                            ===========    =========== =========== =========== =========== ===========
</TABLE>    
 
 
                                       19
<PAGE>
 
<TABLE>   
<CAPTION>
                                                           YEAR ENDED DECEMBER 31,
                                            --------------------------------------------------------
                         THREE MONTHS ENDED
                           MARCH 31, 1997      1996       1995        1994       1993        1992
                         ------------------ ---------- ----------  ---------- ----------  ----------
                                           (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                      <C>                <C>        <C>         <C>        <C>         <C>
SUMMARY OF OPERATIONS
 Interest income........      $862,103      $3,514,795 $3,699,091  $3,095,375 $3,003,422  $3,428,979
 Interest expense.......       544,484       2,262,281  2,472,336   1,798,454  1,666,350   2,070,413
                              --------      ---------- ----------  ---------- ----------  ----------
 Net interest income....       317,619       1,252,514  1,226,755   1,296,921  1,337,072   1,358,566
 Provision for loan
  losses................        24,223         144,924    119,111     176,557    574,970     367,366
                              --------      ---------- ----------  ---------- ----------  ----------
 Net interest income
  after provision for
  loan losses...........       293,396       1,107,590  1,107,644   1,120,364    762,102     991,200
 Gain on sales of
  retail deposit branch
  systems...............        15,956           6,861    514,671      77,901        --          --
 Other noninterest
  income................        72,913         244,937    183,738     182,455    317,828     266,857
 SAIF recapitalization
  assessment............           --          243,862        --          --         --          --
 Other noninterest
  expense...............       217,130         934,968    981,407     970,050  1,299,996     968,443
                              --------      ---------- ----------  ---------- ----------  ----------
 Income (loss) before
  provision for income
  taxes (benefit),
  extraordinary loss
  and cumulative effect
  of accounting
  changes...............       165,135         180,558    824,646     410,670   (220,066)    289,614
 Provision for income
  taxes (benefit).......        62,042          35,300    373,700     173,312    (82,034)    133,222
                              --------      ---------- ----------  ---------- ----------  ----------
 Income (loss) before
  extraordinary loss
  and cumulative effect
  of accounting
  changes...............       103,093         145,258    450,946     237,358   (138,032)    156,392
 Extraordinary loss on
  early extinguishment
  of debt (net of tax
  benefit)..............           --              --         --          --     (21,607)        --
 Cumulative effect of
  changes in accounting
  for goodwill (1995)
  and income taxes
  (1992)................           --              --    (234,742)        --         --       47,677
                              --------      ---------- ----------  ---------- ----------  ----------
 Net income (loss)......      $103,093      $  145,258 $  216,204  $  237,358 $ (159,639) $  204,069
                              ========      ========== ==========  ========== ==========  ==========
PER SHARE INFORMATION--
 COMMON SHARE
 Primary--
   Income (loss) before
    extraordinary loss
    and cumulative
    effect of accounting
    changes.............      $   0.93      $     0.91 $     3.39  $     1.59 $    (1.51) $     1.19
   Net income (loss)....          0.93            0.91       1.40        1.59      (1.69)       1.60
 Fully diluted--
   Income (loss) before
    extraordinary loss
    and cumulative
    effect of accounting
    changes.............          0.87            0.91       3.20        1.58      (1.51)       1.19
   Net income (loss)....          0.87            0.91       1.40        1.58      (1.69)       1.60
 Book value at period
  end...................         19.05           19.09      20.75       19.70      19.61       22.04
 Tangible book value at
  period end............         17.29           17.31      19.47       15.70      15.94       17.94
 Dividends..............          0.22            0.88       0.88        0.88       0.88        0.88
</TABLE>    
 
                                       20
<PAGE>
 
 
SELECTED CONSOLIDATED FINANCIAL DATA OF GWF
   
  The selected consolidated financial data of GWF set forth below have been
derived from the audited consolidated financial statements of GWF for each of
the years in the five-year period ended December 31, 1996 and the consolidated
statement of financial condition (unaudited) and the consolidating statement of
operations (unaudited) at and for the three months ended March 31, 1997. The
selected consolidated financial data set forth below should be read in
conjunction with and is qualified in its entirety by reference to the
consolidated financial statements and accompanying notes contained in the 1996
GWF 10-K (which, for purposes of this Prospectus, is not covered by the report
of GWF's independent accountants) and GWF's earnings release dated April 16,
1997 for the period ended March 31, 1997, which are incorporated by reference
herein. See "Incorporation of Certain Information by Reference".     
 
<TABLE>   
<CAPTION>
                                                                 AT DECEMBER 31,
                                           -----------------------------------------------------------
                         AT MARCH 31, 1997    1996        1995        1994        1993        1992
                         ----------------- ----------- ----------- ----------- ----------- -----------
                                                        (IN THOUSANDS)
<S>                      <C>               <C>         <C>         <C>         <C>         <C>
SUMMARY OF FINANCIAL
 CONDITION
  Cash and securities...    $ 2,448,310    $ 2,491,521 $ 2,527,978 $ 2,371,701 $ 2,154,132 $ 1,974,858
  Loans and mortgage-
   backed securities....     38,746,654     38,611,743  39,690,790  37,647,975  33,850,799  33,752,661
  Real estate...........        115,149        159,997     217,112     256,967     434,077   1,153,383
  Other assets..........      1,567,790      1,611,311   2,150,884   1,941,614   1,909,352   1,558,284
                            -----------    ----------- ----------- ----------- ----------- -----------
    Total assets........    $42,877,903    $42,874,572 $44,586,764 $42,218,257 $38,348,360 $38,439,186
                            ===========    =========== =========== =========== =========== ===========
  Deposits..............    $28,158,331    $28,586,773 $29,234,928 $28,700,947 $31,531,563 $30,908,665
  Borrowings............     10,661,159     10,501,813  11,345,634  10,120,660   3,479,341   4,151,052
  Other liabilities.....      1,073,343      1,090,786   1,083,726     912,864     914,055     929,735
  Company-obligated
   Capital Securities of
   Subsidiary Trust.....        400,000        100,000     100,000         --          --          --
  Stockholders' equity..      2,585,070      2,595,200   2,822,476   2,483,786   2,423,401   2,449,734
                            -----------    ----------- ----------- ----------- ----------- -----------
 Total liabilities,
  Company-obligated
  Capital Securities of
  Subsidiary Trust and
  stockholders' equity..    $42,877,903    $42,874,572 $44,586,764 $42,218,257 $38,348,360 $38,439,186
                            ===========    =========== =========== =========== =========== ===========
</TABLE>    
 
                                       21
<PAGE>
 
 
<TABLE>   
<CAPTION>
                                                           YEAR ENDED DECEMBER 31,
                                            ------------------------------------------------------
                         THREE MONTHS ENDED
                           MARCH 31, 1997      1996       1995       1994       1993       1992
                         ------------------ ---------- ---------- ---------- ---------- ----------
                                           (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                      <C>                <C>        <C>        <C>        <C>        <C>
SUMMARY OF OPERATIONS
  Interest income.......      $784,258      $3,233,931 $3,238,711 $2,629,718 $2,680,784 $3,091,093
  Interest expense......       446,094       1,855,914  1,936,582  1,307,448  1,297,930  1,668,731
                              --------      ---------- ---------- ---------- ---------- ----------
  Net interest income...       338,164       1,378,017  1,302,129  1,322,270  1,382,854  1,422,362
  Provision for loan
   losses...............        40,390         208,971    187,700    207,200    463,000    420,000
                              --------      ---------- ---------- ---------- ---------- ----------
  Net interest income
   after provision for
   loan losses..........       297,774       1,169,046  1,114,429  1,115,070    919,854  1,002,362
  Noninterest income....        95,324         331,825    327,668    367,897    327,855    282,131
  SAIF recapitalization
   assessment...........           --          188,359        --         --         --         --
  Other noninterest
   expense..............       278,395       1,125,890  1,019,975  1,076,433  1,155,662  1,188,981
                              --------      ---------- ---------- ---------- ---------- ----------
  Income before
   provision for income
   taxes and cumulative
   effect of accounting
   change...............       114,703         186,622    422,122    406,534     92,047     95,512
  Provision for income
   taxes................        49,000          70,800    161,100    155,300     30,000     41,600
                              --------      ---------- ---------- ---------- ---------- ----------
  Income before
   cumulative effect of
   accounting change....        65,703         115,822    261,022    251,234     62,047     53,912
  Cumulative effect of
   change in accounting
   for income taxes and
   post-retirement
   benefits.............           --              --         --         --         --      31,094
                              --------      ---------- ---------- ---------- ---------- ----------
  Net income............      $ 65,703      $  115,822 $  261,022 $  251,234 $   62,047 $   85,006
                              ========      ========== ========== ========== ========== ==========
PER SHARE INFORMATION--
 COMMON SHARE
  Primary--
   Income before
    cumulative effect of
    accounting change...      $   0.44      $     0.69 $     1.72 $     1.69 $     0.28 $     0.30
   Net income...........          0.44            0.69       1.72       1.69       0.28       0.53
  Fully diluted--
   Income before
    cumulative effect of
    accounting change...          0.44            0.69       1.71       1.69       0.28       0.30
 Net income.............          0.44            0.69       1.71       1.69       0.28       0.53
  Book value at period
   end..................         17.55           17.63      18.42      16.30      16.05      16.48
  Tangible book value at
   period end...........         15.54           15.55      16.06      13.59      12.80      14.01
  Dividends.............          0.25            0.98       0.92       0.92       0.92       0.91
</TABLE>    
 
                                       22
<PAGE>
 
 
SELECTED UNAUDITED PRO FORMA COMBINED FINANCIAL DATA
   
  The following table sets forth certain selected historical financial data for
Ahmanson and GWF and selected pro forma combined financial data. The pro forma
amounts included in the table below assume completion of the Combination based
on an assumed Exchange Ratio of 1.20 at the closing price per share of Ahmanson
Common Stock on May 9, 1997 and are based on the purchase method of accounting,
a preliminary determination and allocation of the total purchase price and the
assumptions described under "Pro Forma Combined Financial Information". This
information should be read in conjunction with and is qualified in its entirety
the consolidated financial statements and accompanying notes of Ahmanson and
GWF included in the documents described under "Incorporation of Certain
Information by Reference" (but which, in the case of GWF, are not covered by
the report of GWF's independent accountants for purposes of this Prospectus)
and the pro forma combined financial statements and accompanying discussion and
notes set forth under "Pro Forma Combined Financial Information". The pro forma
amounts in the table below are presented for informational purposes and are not
necessarily indicative of the financial position or the results of operations
of the combined company that actually would have occurred had the Combination
been consummated as of the dates or for the periods presented. The pro forma
amounts are also not necessarily indicative of the future financial position or
future results of operations of the Surviving Corporation. In particular,
Ahmanson expects to achieve significant cost savings as a result of the
Combination. These annual cost savings, if they are realized (which cannot be
assured as to amount or timing), would significantly reduce noninterest expense
and increase net income. Additionally, Ahmanson believes that opportunities
exist to enhance certain revenues through the expansion of consumer and
business loans, cash management services, retail banking and investment sales
generated through GW Bank branches. These revenue enhancements, if they are
realized (which cannot be assured as to amount or timing), would increase net
interest income or fee income and increase net income. See "Background of the
Offer--Reasons for the Combination". No adjustment has been included in the pro
forma amounts for such cost savings or revenue enhancements.     
 
<TABLE>   
<CAPTION>
                         THREE MONTHS ENDED MARCH 31, 1997       YEAR ENDED DECEMBER 31, 1996
                         -------------------------------------- -------------------------------
                              HISTORICAL                            HISTORICAL
                         ------------------------  PRO FORMA    ------------------- PRO FORMA
                          AHMANSON       GWF        COMBINED    AHMANSON     GWF     COMBINED
                         ------------ ----------- ------------- ------------------- -----------
                                       (IN MILLIONS, EXCEPT PER SHARE DATA)
<S>                      <C>          <C>         <C>           <C>       <C>       <C>
CONSOLIDATED SUMMARY OF
 INCOME
  Net interest income...  $     317.6 $     338.2  $     655.8  $ 1,252.5 $ 1,378.0 $ 2,630.5
  Provision for loan
   losses...............         24.2        40.4         64.6      144.9     209.0     353.9
  Noninterest income....         88.9        95.3        184.2      251.8     331.8     583.6
  Noninterest expense...        217.1       278.4        538.0    1,178.8   1,314.2   2,662.0
  Net income............        103.1        65.7        126.0      145.3     115.8      97.0
PER COMMON SHARE--FULLY
 DILUTED
  Net income............         0.87        0.44         0.44       0.91      0.69      0.14
  Dividends declared....         0.22        0.25         0.22       0.88      0.98      0.88
WEIGHTED AVERAGE COMMON
 SHARES OUTSTANDING--
 FULLY DILUTED..........        114.0       141.6        263.5      109.7     139.3     270.9
</TABLE>    
 
<TABLE>   
<CAPTION>
                                                          AT MARCH 31, 1997
                                                      --------------------------
                                                         HISTORICAL
                                                      ---------------- PRO FORMA
                                                      AHMANSON   GWF   COMBINED
                                                      -------- ------- ---------
                                                            (IN MILLIONS)
<S>                                                   <C>      <C>     <C>
CONSOLIDATED BALANCE SHEET DATA
  Mortgage-backed securities......................... $14,417  $ 7,536  $21,953
  Loans receivable...................................  30,922   31,211   62,133
  Intangibles........................................     299      277    4,842
  Assets.............................................  48,697   42,878   95,677
  Deposits...........................................  34,399   28,158   62,557
  Borrowings.........................................  10,631   10,661   21,292
  Stockholders' equity...............................   2,399    2,585    8,911
</TABLE>    
 
                                       23
<PAGE>
 
                           
                        INVESTMENT CONSIDERATIONS     
   
  This Prospectus contains forward-looking statements and information
regarding the operation of a combined Ahmanson/GWF company following the
Combination. Such forward-looking information includes statements concerning
operational benefits, opportunities for cost savings and enhanced revenues,
and estimates of merger-related expenses and restructuring charges, among
others. The paragraphs below discuss factors that may cause such forward-
looking statements to differ from actual results and that may cause the
operating results of the combined company to differ materially from the past
results of Ahmanson and GWF as individual companies.     
   
  EXPECTED BENEFITS OF A COMBINED AHMANSON/GWF COMPANY MAY NOT BE
ACHIEVED. Ahmanson anticipates that substantial benefits will occur as a
result of the Combination. Whether the anticipated benefits of the Combination
are ultimately achieved, however, will depend on a number of factors,
including the ability of the combined company to achieve operational and
administrative cost savings at projected levels within projected time frames,
general economies of scale and, generally, the ability of the combined company
to capitalize on its combined asset base and strategic position. There can be
no assurance that the expected benefits of the Combination relative to the
combined business will be achieved or that such benefits will be achieved
within the time periods expected.     
   
  OPERATIONAL ISSUES; MANAGEMENT. Ahmanson has never acquired a depository
institution comparable in size to GWF. Ahmanson's recent acquisitions have
consisted of selected branch acquisitions from other banking institutions.
Upon consummation of the Merger, GWF would be merged into Ahmanson. While
Ahmanson believes that the integration of GWF's operations into Ahmanson will
not present any significant difficulty and will proceed quickly and
efficiently, the integration of GWF into Ahmanson may result in some
unanticipated difficulties that could adversely affect the results of
operations of the combined company.     
   
  POTENTIAL REVENUE ENHANCEMENTS. Both Ahmanson and GWF have been actively
attempting to increase both net interest income and noninterest revenue, and
Ahmanson believes that the combined company's greater resources and larger
customer base should assist revenue growth. Ahmanson anticipates that a
combined Ahmanson/GWF company would be able to generate increased revenues of
at least $50 million annually on a pre-tax basis by 1999. The sources for such
revenues are expected to be increased net interest income from consumer and
business loans and increased fee income from retail banking, cash management
services and investment sales. Over 60% of the projected revenue benefits are
solely due to the consolidation of Ahmanson's and GWF's consumer deposit fee
schedules. The remaining enhancements result from additional business
generated through the GW Bank branches. The estimate of increased revenues is
based on Ahmanson's best judgment and its knowledge of GWF's operations,
derived from publicly available information. If Ahmanson were permitted access
to non-public information regarding GWF's business plans and operations,
Ahmanson's estimates of the potential for increased revenues might differ. The
amount of Ahmanson's projected revenue enhancements in the aggregate is less
than 3% of GWF's annualized revenues (based on revenues for the quarter ended
March 31, 1997). Factors which may cause any revenue gains to be less than
estimated include unanticipated loss of customers due to fee schedule
consolidation, lack of customer acceptance of Ahmanson's consumer lending,
investment and cash management products and services and a downturn in general
economic conditions. Ahmanson intends to implement its branch consolidations
and other cost savings measures in a manner designed to maximize the retention
of revenues, although there can be no assurance that some revenues will not be
lost.     
   
  COST SAVINGS. Ahmanson has estimated that a combined Ahmanson/GWF company
could realize cost savings estimated at approximately $450 million per year
within 15 months after closing a merger. Although Ahmanson has considerably
more experience than WAMU in achieving cost savings in acquisitions in the
California marketplace as well as in consolidating retail branches in
California, no assurance can be given that the cost savings which are
anticipated through the consolidation of retail branch and loan offices of
Ahmanson and GWF and of administrative functions of the combined company will
be achieved or will occur in the time periods anticipated. In addition, when
retail branches are consolidated or closed, financial institutions often lose
customers and deposits as a result. To the extent that the combined company
loses customers or deposits     
 
                                      24
<PAGE>
 
   
significantly in excess of that anticipated, the operations of the combined
company could be materially adversely affected, particularly in the short
term. The forward-looking statements contained herein assume that the deposit
base of both Ahmanson and GWF will remain substantially intact pending and
following the Combination. To the extent that the change in ownership of GWF,
the consolidation of branches of Ahmanson and GWF or other factors result in a
significant temporary or long-term loss of deposits, actual results of
operations may vary materially from the forward-looking information presented.
Furthermore, there can be no assurance that cost savings and revenue
enhancements, if any, which are realized will not be offset by increases in
other expenses, operating losses, other charges to earnings or losses of
revenue, including losses due to problems in integrating the GWF operations
into Ahmanson.     
   
  GEOGRAPHIC CONCENTRATION OF OPERATIONS. Both Ahmanson's and GWF's operations
are concentrated primarily in California. Following the Combination, the
combined company would have approximately 13% of the market share (in terms of
deposits) among depository institutions in California and 12% of the market
share among depository institutions in Southeast Florida. As a result of this
geographic concentration, the financial condition and results of operations of
the combined company will be subject to general economic conditions, and
particularly the conditions in the real estate markets in California and, to a
lesser extent, Florida. The California economy and its real estate market
continued to recover in 1996 from the recessionary levels of the early 1990s.
The forward-looking statements regarding the combined company's results of
operations assume that the California economy and real estate market will
continue to stabilize or improve. A worsening of current economic conditions
or a significant decline in real estate values in California or Florida could
cause a combined Ahmanson/GWF company to suffer decreased net income or losses
associated with higher default rates and decreased collateral values on its
existing portfolio and could compromise the combined company's ability to
originate the volume or type of loans or achieve the level of deposits
currently anticipated.     
   
  INTEREST RATE RISK. Each of Ahmanson and GWF realizes its income principally
from the differential between the interest earned on loans, investments and
other interest-earning assets, and the interest paid on deposits, borrowings
and other interest-costing liabilities. Ahmanson's principal objective of
asset/liability management is to maximize net interest income subject to net
interest margin volatility and liquidity constraints. Net interest margin
volatility results when the rate reset (repricing) characteristics of the
company's assets are materially different from those of the company's
liabilities. Liquidity risk results from the mismatching of asset and
liability cash flows. Ahmanson believes that its net interest income is to
some extent insulated from interest rate fluctuations due to the adjustable
nature of its interest-earning assets. As of December 31, 1996, fixed-rate
loans represented approximately 4% and 7% of Ahmanson's loan and mortgage-
backed securities portfolio on a stand-alone basis and on a pro forma basis
after giving effect to the Combination, respectively. Margin compression may
occur when increases in market rates are not immediately reflected in the
yields on its adjustable rate assets or when market conditions cause Ahmanson
to pay higher rates for its funds.     
   
  COMPETITION. Ahmanson operates in a very competitive market and faces
significant competition both in attracting and retaining deposits and in
making loans in its markets. The most direct competition has historically come
from other thrift institutions, credit unions and commercial banks doing
business in Ahmanson's primary market areas of California and Florida. As with
all banking organizations, however, Ahmanson has experienced increasing
competition from nonbanking sources, including mutual funds, insurance
companies, securities brokerage funds, corporate and government debt
securities and other investment alternatives. Competition for loans comes
principally from other thrift institutions, commercial banks, mortgage banking
companies, consumer finance companies, credit unions, insurance companies and
other institutional lenders. Some of these competitors have significantly
greater financial resources, larger market share and greater name recognition
than either Ahmanson or GWF. There can be no assurance that competition from
such sources will not increase in the future and adversely affect Ahmanson's
ability to achieve its financial goals following the Combination.     
 
                                      25
<PAGE>
 
                            
                         BACKGROUND OF THE OFFER     
   
  The following information relating to the Offer is qualified in its entirety
by reference to the other information contained elsewhere in this Prospectus,
including the Appendices hereto, and the documents incorporated herein by
reference.     
   
BACKGROUND OF THE AHMANSON MERGER PROPOSAL     
          
  On a number of occasions prior to 1996, the current and predecessor chief
executive officers of Ahmanson and GWF have informally discussed the
possibility of a merger of the two companies, although no agreements,
arrangements or understandings resulted from such discussions. These
discussions took place against the background of a rapidly changing banking
industry undergoing substantial consolidation, primarily as a result of
increased competition and a need to reduce costs through economies of scale.
In addition, Ahmanson believes that in recent years the two companies have
been pursuing compatible business strategies. Both Ahmanson and GWF have
initiated a change in focus away from the traditional business of savings
institutions toward consumer banking services and fee-based income. In
addition, both companies have pursued a strategy of branch acquisitions in
selected "core" markets and branch divestitures in non-core markets and have
engaged in active capital management through stock repurchases (GWF suspended
its stock repurchase program upon announcement of its proposed merger with
WAMU).     
   
  On February 17, 1997, Charles R. Rinehart, Chairman of the Board and Chief
Executive Officer of Ahmanson, contacted John F. Maher, President and Chief
Executive Officer of GWF, and delivered to him the Original Proposal. Ahmanson
subsequently issued a press release publicly disclosing the Original Proposal.
The market reacted favorably to the announcement of the Original Proposal,
with the Ahmanson Common Stock closing on February 18, 1997 at $44.875, an
increase of $4.375 (11%) from its closing price on the previous trading day.
Based on that market price, the Original Proposal represented a $12.87 per
share, or 38%, premium to the closing price of GWF Common Stock on the
preceding day. GWF failed to respond to repeated requests to discuss the terms
of the Original Proposal with Ahmanson.     
       
THE GWF/WAMU MERGER AGREEMENT
   
  Following the submission of the Original Proposal by Ahmanson on February
17, 1997, GWF conducted negotiations with and provided confidential
information to WAMU and one other party regarding a possible business
combination with GWF, and negotiated an increase in WAMU's proposed exchange
ratio. GWF refused, however, to enter into any discussions with Ahmanson. On
March 5, 1997, GWF and WAMU entered into the GWF/WAMU Merger Agreement
pursuant to which GWF would be merged with and into a wholly owned subsidiary
of WAMU and each outstanding share of GWF Common Stock would be converted into
0.9 shares of common stock of WAMU.     
   
  Conditions of the Proposed GWF/WAMU Merger. The obligations of WAMU and GWF
to consummate the Proposed GWF/WAMU Merger are subject to various conditions,
including, among others, obtaining requisite stockholder approvals; obtaining
the requisite regulatory approvals, as described below; the effectiveness of
the registration statement on Form S-4 for WAMU common stock (the "WAMU S-4");
approval for listing on NASDAQ of the shares of WAMU common stock and Series F
Preferred Stock of WAMU to be issued in the Proposed GWF/WAMU Merger, subject
to official notice of issuance; receipt of opinions of counsel at the closing
of the Proposed GWF/WAMU Merger in respect of certain federal income tax
consequences of the Proposed GWF/WAMU Merger; and receipt of accountants'
letters to the effect that the Proposed GWF/WAMU Merger qualifies for "pooling
of interests" accounting treatment. The principal required regulatory approval
is approval of the OTS under the Home Owners' Loan Act and the Federal Deposit
Insurance Act.     
       
  Lock-up Fees. Pursuant to the GWF/WAMU Merger Agreement, GWF has agreed to
pay Lock-up Fees of $75 million (plus reimbursement for documented reasonable
out-of-pocket expenses of up to $20 million) if the
 
                                      26
<PAGE>
 
   
GWF/WAMU Merger Agreement is terminated under certain circumstances and an
additional $100 million if, within 18 months after termination of the GWF/WAMU
Merger Agreement under such circumstances, GWF enters into a definitive
agreement with respect to or consummates an alternative proposal for an
acquisition of GWF by a third party. Ahmanson is challenging the arrangement
for Lock-up Fees through litigation in the Delaware Chancery Court, although
the consummation of the Offer is not conditioned on the success of Ahmanson's
legal challenge. On March 10, 1997, Mr. Rinehart announced that if Ahmanson
succeeds in its challenge to the Lock-up Fees and Ahmanson completes a merger
with GWF, Ahmanson would return the amount of expenses thereby saved by the
combined company by paying a pro rata portion of such savings to stockholders
of GWF for each Share converted in a merger with Ahmanson. See "--Litigation".
       
  The foregoing description of certain provisions of the GWF/WAMU Merger
Agreement is derived entirely from, and is qualified in its entirety by
reference to, the text of the GWF/WAMU Merger Agreement, a copy of which has
been filed by WAMU as an exhibit to the WAMU S-4. According to the WAMU S-4,
WAMU and certain other potential merger candidates were afforded an
opportunity to discuss with GWF and its financial advisors a possible business
combination with GWF. Ahmanson was not contacted by GWF or its financial
advisors and was not afforded an opportunity to conduct due diligence on GWF
or to receive any confidential information.     
   
AHMANSON'S ENHANCED MERGER PROPOSAL     
   
  On March 17, 1997, Ahmanson submitted to GWF the Ahmanson Merger Proposal,
pursuant to which each outstanding Share would be converted into between 1.10
and 1.20 shares of Ahmanson Common Stock. The exact exchange ratio would have
been determined by the same formula that will determine the Exchange Ratio for
the Offer, except that the average market price of Ahmanson Common Stock used
to determine the exchange ratio for the Ahmanson Merger Proposal would have
been based on the 20 trading days preceding the approval of the proposed
merger by the OTS. Based on the closing price of the Ahmanson Common Stock on
[    ], 1997 (and assuming the average closing price of the Ahmanson Common
Stock on the NYSE during such 20-day averaging period were equal to the
closing price on such date), the exchange ratio for the Ahmanson Merger
Proposal, as for the Offer, would be [    ] and the Ahmanson Merger Proposal
would have had an implied market value of $[    ] per Share.     
          
  The implied market value of the Ahmanson Merger Proposal is superior to that
of the Proposed GWF/WAMU Merger (based on closing market prices on [    ],
1997 and on each of the preceding [   ] trading days). Accordingly, Ahmanson
believes that the GWF directors have a fiduciary duty to commence merger
negotiations with Ahmanson, as permitted by the GWF/WAMU Merger Agreement. The
GWF/WAMU Merger Agreement permits GWF directors and management to participate
in discussions or negotiations with third parties relating to acquisition
proposals, without triggering a right of termination or the imposition of
Lock-up Fees under the agreement, if the GWF Board, after consulting its
financial and legal advisors, "determined in good faith that the failure to do
so would create a reasonable possibility of a breach of the fiduciary duties
of [GWF's] board of directors." To date, GWF has not given Ahmanson an
opportunity to enter into any discussions or negotiations concerning a
business combination between Ahmanson and GWF.     
          
REASONS FOR THE COMBINATION     
   
  Based on the closing price of Ahmanson Common Stock on [    ], 1997 (and
assuming the average closing price of the Ahmanson Common Stock on the NYSE
during the Averaging Period is equal to such closing price), the implied
market value of the Offer represents a premium of $[    ] per Share, or
[   ]%, over the implied market value of the Proposed GWF/WAMU Merger on such
date. Ahmanson also believes the Ahmanson Merger Proposal offers greater value
to GWF stockholders than the Proposed GWF/WAMU Merger over the longer term.
Ahmanson believes that an Ahmanson/GWF merger can generate, through cost
savings and revenue enhancements, considerably greater cash earnings per GWF
Share than the Proposed GWF/WAMU Merger. Ahmanson notes that the market
response to its Original Proposal was far more enthusiastic than the response
to the Proposed GWF/WAMU Merger; on the day of the announcement of the
Original Proposal,     
 
                                      27
<PAGE>
 
   
Ahmanson's stock rose almost 11%, while on the day of the announcement of the
Proposed GWF/WAMU Merger, WAMU's stock declined 0.5%.     
   
  Ahmanson believes that the Combination represents a unique and compelling
opportunity to enhance value for stockholders of both Ahmanson and GWF.
Specifically, Ahmanson believes that the Combination would (a) result in
accretion to cash earnings per share (i.e., reported earnings before
amortization of intangibles) of 8% in 1998 and 20% in 1999, and accretion to
reported earnings per share of 2% for 1999 (assuming the maximum Exchange
Ratio of 1.20), and accretion to cash earnings per share of 14% in 1998 and
27% in 1999 and accretion to reported earnings per share of 5% in 1999
(assuming the minimum Exchange Ratio of 1.10), (b) allow the combined company
to realize cost savings estimated at approximately $450 million per year
(Ahmanson expects to be able to achieve substantially all of such annual
savings within 15 months after closing the Merger), (c) enhance the combined
company's competitive position in California, where the combined company would
rank third (with about $50 billion in deposits), and in Florida, where the
combined company would rank fifth (with about $10 billion in deposits), (d)
generate enhanced revenues for the combined company of at least $50 million
annually by 1998 and (e) provide additional scale in key business lines
(mortgage lending, loan servicing, consumer and small business lending and
investment services). Based on the advice of Sullivan & Cromwell, special
counsel to Ahmanson, and Ahmanson's experience in obtaining approvals for
other transactions, Ahmanson believes that it will be able to obtain the
regulatory approvals necessary for the Combination on a timely basis and
without the imposition of any condition that would have a material adverse
effect on the combined company. However, the regulatory approval process is
such that Ahmanson can give no definitive assurance that any Requisite
Regulatory Approval will be obtained or, if obtained, will be obtained on a
timely basis and without the imposition of other material conditions. See "The
Offer--Regulatory Approvals Condition".     
   
  Cost Savings Estimates. As a result of the high degree of geographic and
operational overlap between the two companies--in California, 46% of GWF's
branches are within one mile, and 67% are within two miles, of an Ahmanson
branch, and in Florida, 52% of Ahmanson's branches are within one mile, and
100% are within two miles, of a GWF branch--Ahmanson believes that the
Combination offers significant opportunities for net cost savings and
operating efficiencies. In addition, the corporate headquarters of Ahmanson
and GWF are only 48 miles apart. Although Ahmanson expects that the
Combination would result in a consolidation of approximately 25% of the
combined company's branches, the current customers of each of Ahmanson and GWF
will gain access to at least an additional 150 branches as a result of the
Combination. Ahmanson believes that as a result of the Combination the
combined company would enjoy significantly enhanced operating performance
relative to that of Ahmanson or GWF independently, as well as a significant
accretion in cash earnings per share in the first year and accretion in
reported earnings per share for 1999. See "--Accretion Projections".     
   
  In order to estimate cost savings that would be realized as a result of the
Combination, Ahmanson conducted a business line analysis of GWF intended to
estimate the annual cost of operating GWF as part of a combined company.
Ahmanson estimated the annual cost to operate GWF on a stand-alone basis,
based in part on published reports of independent analysts, including analysts
at Lehman Brothers and Merrill Lynch & Co. Ahmanson then looked at the
business lines of GWF in order to estimate at what cost such business lines
could be operated as a part of Ahmanson, without reducing revenues
attributable to GWF. Because Ahmanson has had no access to GWF's internal
information about its costs, Ahmanson used publicly available information for
its analysis. Ahmanson also used its general knowledge of the marketplace in
which Ahmanson and GWF compete. With respect to each cost category, Ahmanson
looked not only at estimates of GWF's direct costs, but also estimated the
expense of any incremental indirect costs, such as changes in shared resources
and facilities which would be required by business line. Ahmanson compared the
estimated annual cost to operate GWF as part of a combined company to the
estimated annual cost to operate GWF on a stand-alone basis. The difference
represents Ahmanson's estimate of annual cost savings from the Combination.
Ahmanson subsequently revised its estimated cost savings based on data which
became available from the WAMU S-4 with respect to the Proposed GWF/WAMU
Merger. Specifically, Ahmanson revised its estimates in light of the
categories of expenses and the overall size of GWF's General and
Administrative expense base that were presented in the WAMU S-4.     
 
                                      28
<PAGE>
 
   
Since WAMU had performed due diligence on GWF, Ahmanson used the higher
expense base and rearranged its expense estimate detail to conform to WAMU's
presentation, and summarized that information using WAMU's categories.     
 
  The table below presents Ahmanson's estimate of the annual cost to operate
GWF on a stand-alone basis, the annual cost to operate GWF as part of a
combined entity and the annual cost savings represented by such estimates,
with detail by category of expense. It should be recognized, however, that
these estimates are subject to uncertainties both with respect to GWF's
current expenses and the ability of the combined company to reduce expenses,
as well as general economic conditions.
 
<TABLE>
<CAPTION>
                                            ESTIMATED COST
                             ESTIMATED COST TO OPERATE GWF
                             TO OPERATE GWF   AS PART OF   % ESTIMATED ESTIMATED
                             ON STAND-ALONE    COMBINED       COST       COST
                                 BASIS          ENTITY       SAVINGS    SAVINGS
                             -------------- -------------- ----------- ---------
                                            (DOLLARS IN MILLIONS)
<S>                          <C>            <C>            <C>         <C>
Administration/Finance......      $125           $ 35           72%      $ 90
Lending.....................       131             72           45         59
Corporate Operations........       220             97           56        123
Retail Banking..............       358            194           46        164
Subsidiaries................       160            142           11         18
                                  ----           ----                    ----
  Total.....................      $994           $540           46%      $454
                                  ====           ====                    ====
</TABLE>
   
  Ahmanson expects to be able to achieve substantially all of such cost
savings within 15 months after closing the Combination. In combining the two
companies and realizing the foregoing savings, Ahmanson would expect to incur
a restructuring charge and acquisition costs, together estimated at $450
million (approximately equal to one year of estimated cost savings, but
subject to change in light of additional information). See Note C to "Pro
Forma Combined Financial Information". In addition, Ahmanson's projections
include an additional provision for loan losses of up to $100 million, which
could possibly be required if an examination of GWF's loan portfolio revealed
assets which Ahmanson would manage differently than GWF. Aside from an
increase in GWF's nonperforming assets (excluding a sale of $300 million in
nonperforming assets) in the fourth quarter of 1996, Ahmanson had no reason to
believe that GWF's existing loan loss allowance was not sufficient to cover
all future losses. However, Ahmanson had no ability to perform due diligence
with respect to GWF's loan portfolio. Ahmanson provided for the possibility of
increasing the current GWF allowance for loan losses by $150 million, which
amount was intended to provide for, if necessary, any specific credit quality
problems that might be discovered upon an examination of GWF's portfolio,
including those that would otherwise reduce the market value of certain loans
should Ahmanson conclude that they should not be retained in the portfolio.
Ahmanson's subsequent reduction in the estimated loan loss allowance to $100
million was based on WAMU's intention, stated in the WAMU S-4 and based on
WAMU's access to non-public information through due diligence, to provide a
$100 million increase to the allowance for loan losses in connection with its
planned sale of up to $1 billion of GWF portfolio loans. In light of
Ahmanson's intention to reduce the balance sheet of underperforming loans in a
combined Ahmanson/GWF company and the limited information regarding the credit
quality of GWF's loan portfolio that was indicated by WAMU's stated
intentions, Ahmanson believes that an estimate of an addition of $100 million
to the GWF loan loss allowance, if required, is reasonable.     
   
  Ahmanson believes that its projected cost savings can be achieved with
minimal layoffs of employees of GWF. Based on Ahmanson's own attrition rates
and industry norms, and assuming that GWF would, as proposed by Ahmanson on
February 20, 1997, implement new hiring restraints comparable to those already
implemented by Ahmanson, the number of positions that could be open through
1998 could actually exceed the number of position reductions which Ahmanson
believes are required to achieve the projected cost savings.     
 
  Ahmanson believes that its cost savings estimates are in line with estimates
made in other major in-market combinations involving depository organizations
and that its estimated restructuring charge is reasonable in light
 
                                      29
<PAGE>
 
of the restructuring charges estimated for such in-market combinations, as
demonstrated by the following table. In making comparisons with other
transactions, stockholders are cautioned, however, that no two transactions
are identical, the table deals only with estimates and not actual cost savings
or restructuring charges, and each transaction has its own unique facts and
circumstances (including the actual level of direct market overlap) that may
affect both the estimates and the actual amounts of cost savings and
restructuring charges.
 
 COST SAVINGS ESTIMATES FOR SELECTED IN MARKET TRANSACTIONS ANNOUNCED IN 1995
                  AND 1996 WITH VALUE GREATER THAN $1 BILLION
 
<TABLE>   
<CAPTION>
                                                   COST SAVINGS ESTIMATES
                                       ----------------------------------------------
                                            AS A
                                        PERCENTAGE OF                     TIME TO
                                           SMALLER      RESTRUCTURING     ACHIEVE
                                          COMPANY'S      CHARGE AS A     100% COST
                          ANNOUNCEMENT    OPERATING     PERCENTAGE OF     SAVINGS
                              DATE     EXPENSE BASE(1) COST SAVINGS(2) (IN MONTHS)(3)
                          ------------ --------------- --------------- --------------
<S>                       <C>          <C>             <C>             <C>
IN-MARKET
 TRANSACTIONS(4)
Bank of Boston/BayBanks.    12/12/95          39%             74%            12
Chemical/Chase
 Manhattan..............    08/28/95          40             112             21
Fleet Financial/Shawmut.    02/21/95          43             100             15
Mercantile/Roosevelt....    12/23/96          37             107             18
NationsBank/Bank South..    09/05/95          60              49              8
Wells Fargo/First
 Interstate.............    11/13/95          46              90             18
AVERAGE.................                      44%             89%            15
AHMANSON/GWF(5).........    02/18/97          46%             99%            15
</TABLE>    
   
- --------
    
(1) Source: Investor presentations. Cost savings estimates as a percentage of
    operating expense base for the company with the smaller expense base.
   
(2) Source: Investor presentations. Percentage is based on fully phased-in
    cost savings. Restructuring charges do not include additional provision
    for loan losses, if required. See Note C to "Pro Forma Combined Financial
    Information".     
(3) Source: Investor presentations.
(4) For purposes of this discussion, "in-market" transactions selected by
    Ahmanson are combinations of depository organizations (1) of comparable
    size, (2) having an overlap between their geographic markets generally
    comparable to that between Ahmanson and GWF and (3) having compatible
    lines of business and products.
   
(5) Based on Ahmanson Merger Proposal. Announcement date is the date of the
    public announcement of the Original Proposal.     
   
  Potential Revenue Enhancements. Both Ahmanson and GWF have been actively
attempting to increase both interest and noninterest revenue, and Ahmanson
believes that the combined company's greater resources and larger customer
base should assist revenue growth. Ahmanson anticipates that a combined
Ahmanson/GWF company would be able to generate increased revenues of at least
$50 million annually on a pre-tax basis by 1998. The sources for such revenues
are expected to be (i) increased net interest income from consumer and
business loans and (ii) increased fee income from retail banking, cash
management services and investment sales, in each case resulting from
additional business generated through GW Bank branches. The estimate of
increased revenues is based on Ahmanson's best judgment and its knowledge of
GWF's operations, derived from publicly available information. With respect to
the expected increase in net income from consumer and business loans, Ahmanson
expects to continue its recent success in building consumer lending volume in
its branch network. Ahmanson understands that GWF has just introduced consumer
loan products and has virtually no portfolio of such loans currently. For
purposes of estimating increased revenues from these product lines, Ahmanson
assumed that the growth of consumer loan originations would match the growth
that Ahmanson branches have     
 
                                      30
<PAGE>
 
   
experienced to date. In addition, because Ahmanson has more business lending
products than GWF, Ahmanson would expect to generate more income through the
GWF branches by offering GWF's current customers its entire line of business
lending products. The expected increase in fee income from retail banking,
cash management services and investment product sales is based on the
application of a new fee structure at GWF branches and the development of
newly introduced fee-based services and products. Ahmanson compared Ahmanson's
and GWF's deposit product and service fee schedules and developed a
consolidated fee schedule that would be employed in both GWF and Ahmanson
branches. This new fee structure would be expected to provide increased fee
income without assuming any increases in volume. In addition, Ahmanson has
several sources of revenue (e.g., debit cards) and offers services and
products that are not currently used or have only recently been offered by
GWF. Ahmanson believes there is an opportunity to increase revenues by
developing these services and products at the GWF branches.     
   
  If Ahmanson were permitted access to non-public information regarding GWF's
business plans and operations, Ahmanson's estimates of the potential for
increased revenues might differ. Ahmanson intends to implement its branch
consolidations and other cost saving measures in a manner designed to maximize
the retention of revenues, although there can be no assurances that some
revenues will not be lost.     
 
  Markets and Competitive Position. Ahmanson believes that a depository
organization's level of profitability is directly tied to the markets it
serves and the organization's competitive position in those markets. The
principal markets common to Ahmanson and GWF are California, where, on a
combined basis, they have $50 billion in deposits, and Florida, where they
have $10 billion in deposits. California is the largest state in the country
in terms of population, with approximately 32 million inhabitants. After a
serious economic decline in the early part of this decade, the California
economy has significantly rebounded, with the overall unemployment rate
declining to 6.9% in October 1996 from 9.4% in 1993 and per capita income
rising 5.7% in 1995 as compared with annual increases of 3.3% or less in the
1991-1994 period. Florida, with a population of approximately 14 million, is
now the fourth largest state in the country and the second fastest growing
state (trailing only Texas). Together, California and Florida represent
approximately 17% of the U.S. population.
   
  As a result of the Combination, the combined company would gain substantial
market share in both California and Florida and significantly improve its
competitive position. At June 30, 1996, Ahmanson had only 36% and 51% of the
California deposits of BankAmerica and Wells Fargo, and GWF had only 28% and
39% of those deposits. The Combination would increase these percentages to 64%
and 90%. Likewise, in southeast Florida, which is the focus of both companies'
Florida operations, the combined company's market share would increase to 70%
of the market share of the market leader. The Combination would improve
Ahmanson's market share position among depository organizations, based on
deposits, in 17 of the 20 Metropolitan Statistical Areas ("MSAs") in
California where they overlap.     
 
                                      31
<PAGE>
 
   
  The California and Florida operations of both Ahmanson and GWF have focused
on the major markets in these states. In each of the top five MSAs (based on
population) in California, which collectively represent approximately 62% of
the population of California and 62% of its deposits, a combined Ahmanson/GWF
would rank 1, 2 or 3 among depository organizations in terms of deposits. The
following table shows the rankings of a combined Ahmanson/GWF entity by
deposits in key markets in California and Florida, including the top five MSAs
in California by amount of deposits. An Ahmanson/GWF combination would result
in a higher deposit market share than a WAMU/GWF combination in both
California and Florida, as well as in seven of the eight MSAs listed below.
    
            PRO FORMA RANKINGS IN CALIFORNIA AND FLORIDA MARKETS(1)
 
<TABLE>
<CAPTION>
                 MARKET                                      RANK  DEPOSITS(2)
                 ------                                      ---- -------------
                                                                  (IN BILLIONS)
      <S>                                                    <C>  <C>
      California
        LA-Long Beach.......................................   2      $20.0
        Orange County.......................................   2        5.5
        San Diego...........................................   1        5.2
        Riverside-San Bernardino............................   2        3.2
        Oakland.............................................   3        3.0
      California Overall....................................   3      $50.2
      Florida
        Fort Lauderdale.....................................   4      $ 3.1
        Miami...............................................   4        3.4
        W. Palm Beach-Boca Raton............................   3        2.5
      Florida Overall(3)....................................   5      $10.4
</TABLE>
- --------
(1) Rankings of a combined Ahmanson/GWF company by amount of deposits in the
    indicated markets (as defined by the Federal Reserve Banks). Includes only
    markets where a combined Ahmanson/GWF company would have more than $2.5
    billion in deposits on a pro forma basis.
 
(2) Source: SNL Securities. Deposits are as of June 30, 1996.
 
(3) Excluding the deposits of Ahmanson's 12 west coast Florida branches, the
    sale of which was announced on February 11, 1997.
   
  In addition to market share in geographic markets, Ahmanson believes that
market share and scale are also important with respect to product lines.
Ahmanson believes that the Combination would provide additional scale in the
key businesses of mortgage lending, loan servicing, consumer and small
business lending and investment services. A combined Ahmanson/GWF entity would
rank third in both California and Florida in its volume of mortgage loan
originations and would have a loan servicing business 85% larger than
Ahmanson's, based on the dollar value of serviced loans as of December 31,
1996.     
 
                                      32
<PAGE>
 
   
  Accretion Projections. Ahmanson believes that the Combination presents an
opportunity for significant accretion in cash earnings per share. (Cash
earnings per share is composed of the same items of income and expense which
comprise net income per share as reported under generally accepted accounting
principles, except that cash earnings per share excludes the expense of
amortization of goodwill and core deposit intangibles. Cash earnings per share
as so calculated may not be comparable to the same or similarly titled
measures reported by other companies.) Using a pre-merger base case based upon
analysts' stand-alone earnings estimates for Ahmanson and GWF and assuming (i)
a continuation of Ahmanson's current capital management program, (ii) the
estimates of cost savings and revenue enhancements described above and (iii)
the market price of Ahmanson Common Stock and the Exchange Ratio set forth in
the table below, Ahmanson estimates that the Combination would result in
accretion to its cash earnings per share and accretion or dilution to reported
earnings per share in 1998 and 1999, respectively, as set forth below:     
 
                   PROJECTED IMPACT ON ACCRETION/(DILUTION)
 
<TABLE>   
<CAPTION>
           Assumed      Assumed Market        % Accretion (Dilution)
           Exchange    Price of Ahmanson      ----------------------
            Ratio        Common Stock          1998               1999
           --------    -----------------   -------------      -------------
           <S>         <C>                 <C>                <C>
                                           REPORTED EARNINGS PER SHARE
             1.20          $39.375*                  (11)%                2%
             1.15            43.50                   (11)                 3
             1.10            45.50                    (8)                 5
                                             CASH EARNINGS PER SHARE
             1.20          $39.375*                    8%                20%
             1.15            43.50                    11                 23
             1.10            45.50                    14                 27
</TABLE>    
                   
                *Closing market price on the NYSE on May 9, 1997.     
   
  Purchase Accounting; Stock Repurchase Program. Effective capital management
has increasingly become a focus of financial institutions as a result of the
significant amount of excess capital generated by depository institutions in
recent years. Believing effective capital management to be an integral part of
its strategic plan, Ahmanson has utilized stock repurchases as a means to
return excess capital to its stockholders.     
   
  Ahmanson intends to use the purchase method of accounting to account for the
Combination. Ahmanson believes there are significant advantages to purchase
accounting over pooling of interests accounting. In particular, Ahmanson
intends to use purchase accounting for the Combination because it would not
require Ahmanson or GWF to reissue previously repurchased shares and allows
for greater flexibility in repurchasing shares after completion of the
transaction than is available given current accounting practices under pooling
of interests accounting. The pro forma levels of tangible and regulatory
capital are identical in all material respects, regardless of whether purchase
or pooling of interests accounting is utilized. Although under purchase
accounting goodwill and certain other intangibles will be recorded in the
transaction and amortized over time (with the result that reported net income
will be lower), amortization is not a cash expense. Therefore, amortization
does not affect the amount of cash flow available to a company for generating
or acquiring new assets and thus the meaningful earnings power of the
institution, as represented by reported earnings before amortization of
intangibles (i.e., cash earnings), is unaffected.     
   
  The purchase method of accounting was used by Wells Fargo for its merger
with First Interstate and by NationsBank for its merger with Boatmen's
Bancshares and has become more common in the financial services industry over
the last few years: in 1992, 24% of the bank and thrift mergers in the U.S.
valued at over $100 million were accounted for as purchases; by 1996, that
percentage had risen to 63%. Many of the country's major financial
institutions, including Bank of America, Wells Fargo, Fleet Financial, Mellon,
NationsBank, First Union, First Bank System, US Bancorp and Bank of New York,
report cash earnings information in addition to reported earnings to the
investor community on a regular basis.     
 
                                      33
<PAGE>
 
   
  The use of purchase accounting or pooling-of-interests accounting is based
on the facts of a particular transaction. Ahmanson views the flexibility to
repurchase shares as critical because Ahmanson fully expects to continue its
previously announced repurchase program as a means of returning to
stockholders excess capital being generated by operations. As of March 31,
1997, since initiating its first stock purchase program in October 1995,
Ahmanson had repurchased 19.2 million shares of Ahmanson Common Stock, or 16%
of the shares outstanding on September 30, 1995, at an average price of
$27.11. Ahmanson expects to continue its current capital management program.
If the Proposed Merger is consummated and Ahmanson's earnings estimates for
the combined company are realized, Ahmanson would expect to repurchase shares
of Ahmanson Common Stock having an aggregate market value of approximately
$2.8 billion over the nine fiscal quarters beginning October 1, 1997. See
"Description of Ahmanson Capital Stock--Repurchases of Ahmanson Common Stock".
       
COMPARISON OF THE PROPOSALS.     
   
  Included in the WAMU S-4 is a list of the factors considered by the GWF
Board as material in selecting WAMU's proposal over the Ahmanson Merger
Proposal. Conspicuously absent from that list is any consideration of the
implied purchase price produced by each of the two proposals. ON ALL BUT TWO
DAYS SINCE AHMANSON ANNOUNCED THE AHMANSON MERGER PROPOSAL ON MARCH 17, 1997,
THE AHMANSON MERGER PROPOSAL HAS PRODUCED A MARKET VALUE HIGHER THAN THE
MARKET VALUE PRODUCED BY THE PROPOSED GWF/WAMU MERGER. On [   ], 1997 (the
last trading day prior to the date of this Prospectus) the differential
(assuming the average closing price of the Ahmanson Common Stock during the
Averaging Period is equal to the closing price on that date) amounted to $[  ]
per Share, and the aggregate market value of the Offer exceeded the aggregate
market value of the Proposed GWF/WAMU Merger by approximately $[  ] million.
Based on public filings by WAMU and GWF, Ahmanson believes that GWF's asserted
reasons for favoring the WAMU proposal were erroneous in a number of
significant respects and that these reasons do not justify the rejection of
the Ahmanson Merger Proposal with its higher market value.     
 
<TABLE>   
<CAPTION>
 GWF'S LISTED REASON                    THE FACT
 -------------------                    --------
 <C>                                    <S>
 1. Projections. WAMU's projections as  WAMU projections of cost savings and
 to cost savings and revenue            revenue enhancements amount to 130% of
 enhancements are reasonable and        GWF's "core" net income in 1996 (as
 obtainable.                            defined by GWF) and 86% of projected
                                        net income in 1999. Ahmanson is
                                        unaware of any other banking merger
                                        where cost and revenue projections
                                        have accounted for anywhere near such
                                        a high percentage of net income. The
                                        credibility of WAMU's projections was
                                        questioned by a number of independent
                                        analysts, while the credibility of
                                        Ahmanson's projections was not
                                        questioned.
 2. Capital. Ahmanson's capital ratios  Home Savings' capital exceeds the
 are too low.                           standards for qualification as "well
                                        capitalized", the highest regulatory
                                        capital category. The OTS has not
                                        found it necessary to prescribe
                                        specific capital ratios for holding
                                        companies, and Ahmanson's capital
                                        levels have never been criticized by
                                        rating agencies or analysts. WAMU's
                                        projected tangible common equity ratio
                                        (which is not a regulatory ratio, but
                                        has been focused on by GWF) would rank
                                        it approximately 397th out of the 409
                                        publicly traded thrifts (with data
                                        available as of year-end 1996).
 3. Presence in California. A combined  A combined Ahmanson-GWF company would
 GWF-WAMU would have "the same position have a 45% higher market share in
 in California" as a combined Ahmanson- California.
 GWF company.
</TABLE>    
 
                                      34
<PAGE>
 
<TABLE>   
<CAPTION>
 GWF'S LISTED REASON                    THE FACT
 -------------------                    --------
 <C>                                    <S>
 4. Banking Initiatives. GWF's strategy By almost every relevant measure--
 would be "hindered" because Ahmanson's growth in consumer loans, commercial
 efforts to become more bank-like       loans, demand deposit accounts, cash
 "lagged" behind those of GWF.          management services, and fee income--
                                        Ahmanson's efforts have exceeded those
                                        of GWF.
 5. Significant Acquisition Experience. Only one of those acquisitions for
 WAMU has "successfully integrated      which integration has been completed
 numerous significant acquisitions      had assets in excess of $750 million
 since 1990."                           ($750 million is less than 2% of the
                                        size of GWF). In contrast, Ahmanson
                                        has had five acquisitions involving
                                        more than $750 million in assets.
 6. Technology                          Ahmanson has expeditiously and
 Incompatibility. Ahmanson's ability to successfully integrated a large Hogan
 obtain cost savings will be hampered   deposit system (in the First
 by technology incompatibility, while   Interstate transaction). Ahmanson and
 WAMU's ability to obtain cost savings  GWF use the same systems for mortgage
 will be advanced by technology         servicing and consumer lending, and
 compatibility.                         GWF approached Ahmanson to license
                                        Ahmanson's mortgage origination
                                        system. In addition, the customization
                                        of GWF's and WAMU's Hogan deposit
                                        systems reduce compatibility.
 7. Net Interest Margin/Interest Rate   WAMU's net interest margin has
 Risk. WAMU's higher net interest       declined almost 150 basis points since
 margin.                                1992. Because of WAMU's higher
                                        percentage of fixed-rate loans and
                                        higher percentage of funding from
                                        wholesale funds, Ahmanson believes
                                        that WAMU's net interest income is
                                        significantly more vulnerable to
                                        interest rate risk than Ahmanson's.
 8. Credit Position.WAMU has a stronger One of the two major credit rating
 credit position than Ahmanson          agencies ranks Ahmanson higher than
                                        WAMU.
 9. Different Strategies. GWF and       In almost all respects, the strategies
 Ahmanson have pursued different        of Ahmanson and GWF have been closer
 strategies, while GWF and WAMU have    than the strategies of WAMU and GWF.
 pursued similar strategies.
                                        (i) Capital Management. Both Ahmanson
                                        and GWF implemented major stock buy-
                                        back programs. WAMU asserts that it
                                        has not implemented such a program.
                                        (ii) Geographic Focus. Both Ahmanson
                                        and GWF focused on California and
                                        Florida, states with large populations
                                        and major urban areas. WAMU has not
                                        entered Florida and has made non-core
                                        acquisitions in a number of sparsely
                                        populated western states (e.g.,
                                        Montana and Idaho).
                                        (iii) Acquisitions. Ahmanson and GWF
                                        had bid on the same acquisition
                                        targets (e.g., First Interstate branch
                                        divestitures and the Home Federal
                                        branch sale). Conversely, neither
                                        Ahmanson nor GWF has bid on
                                        acquisition targets on which WAMU has
                                        bid (e.g., American Savings Bank and
                                        acquisitions in Utah, Montana and
                                        Idaho).
                                        (iv) Mortgage Lending: GWF and
                                        Ahmanson retain almost entirely
                                        adjustable rate mortgages. WAMU
                                        continues to make and retain a
                                        significant number of fixed-rate
                                        mortgage loans and, through American
                                        Savings Bank, COFI-based mortgage
                                        loans.
</TABLE>    
 
                                       35
<PAGE>
 
<TABLE>   
<CAPTION>
 GWF'S LISTED REASON                    THE FACT
 -------------------                    --------
 <C>                                    <S>
 10. Exposure to Commercial Real        WAMU's percentage of commercial real
 Estate. Ahmanson has greater exposure  estate loans to assets is about three
 to commercial real estate than WAMU.   times greater than Ahmanson's
                                        percentage.
 11. Ahmanson's Stock Buy-Back          The analyst community has not been
 Program. Concern about the level of    critical of Ahmanson's buy-back
 Ahmanson's stock buy-back program and  program. Indeed, Ahmanson's strategy
 the impact on leverage.                has been widely applauded by the
                                        analyst community as promoting
                                        stockholder value.
                                        Ahmanson's stock buy-back program is a
                                        flexible way to maintain leverage. In
                                        contrast, WAMU will increase its
                                        leverage through aggressive loan
                                        expansion ($18 billion in 30 months),
                                        with attendant credit risk, interest
                                        rate risk or both.
                                        GWF itself adopted a substantial buy-
                                        back program.
 12. Credit Quality. Concern about      Based on key indicators, Ahmanson's
 Ahmanson's credit quality.             credit quality has been improving
                                        sharply. This reflects the ability of
                                        Ahmanson's management to deal with
                                        California's serious economic problems
                                        in the first half of this decade.
                                        WAMU's management has not been tested
                                        in a downward economic cycle. In the
                                        12-month period ended March 31, 1997,
                                        Ahmanson's nonperforming assets
                                        declined 19%, while WAMU's
                                        nonperforming assets increased.
 13. Efficiency. WAMU has a better      As a result of Ahmanson's focus on
 efficiency ratio than Ahmanson.        cost reduction, its efficiency ratio
                                        in the two most recent fiscal quarters
                                        is equal to that of WAMU.
</TABLE>    
   
  In addition, there is no indication in the public filings that the GWF Board
considered any of the following factors material:     
     
  .  THE HIGHER CURRENT MARKET VALUE OF AHMANSON'S PROPOSAL. On all but two
     days since Ahmanson announced the Ahmanson Merger Proposal on March 17,
     1997, the Ahmanson Merger Proposal has produced a market value higher
     than the market value produced by the Proposed GWF/WAMU Merger.     
     
  .  Ahmanson's ability to attain greater cost savings because of the
     substantially greater geographic overlap. Ahmanson has twice as many
     branches in GWF's market (and vice versa) as WAMU, and the corporate
     headquarters of Ahmanson and GWF are 48 miles apart as opposed to the
     1,100 mile separation between the corporate headquarters of WAMU and
     GWF.     
     
  .  The far more enthusiastic market response to the announcement of
     Ahmanson's Original Proposal than to the announcement of the Proposed
     GWF/WAMU Merger. Ahmanson's stock price rose 11%; WAMU's stock price
     declined 0.5%.     
     
  .  Ahmanson's lower interest rate risk than WAMU's (which divergence is
     likely to be increased by WAMU's projected loan growth). WAMU has
     considerably higher dependence on wholesale funding, fixed-rate loans
     and COFI-based loans.     
     
  .  The greater ownership by GWF stockholders in a combined Ahmanson-GWF
     company (approximately 60%) than in a combined WAMU-GWF company
     (approximately 50%).     
     
  .  The considerably stronger market position of an Ahmanson-GWF company
     than a WAMU-GWF company in Florida.     
     
  .  The potential value of Ahmanson's goodwill litigation claim (WAMU has no
     equivalent claim).     
 
                                      36
<PAGE>
 
     
  .  The potential value of Ahmanson's federal tax claim relating to state
     branching rights (WAMU has no equivalent claim).     
     
  .  Ahmanson's management experience in Florida and consumer finance, where
     WAMU has none.     
   
ACTIONS RELATED TO THE OFFER     
   
 OTS Application     
   
  On February 24, 1997, Ahmanson filed an application with the OTS seeking the
Requisite Regulatory Approval of the OTS. See "The Offer--Regulatory Approvals
Condition".     
   
 The Consent Solicitation     
   
  Prior to the date of this Prospectus, Ahmanson conducted a solicitation of
written consents from GWF stockholders to proposals (a) urging the GWF Board,
among other things, to engage in discussions and negotiations with Ahmanson or
any other person making a bona fide and concrete merger proposal (Consent
Proposal 1), (b) urging the GWF Board not to grant excessive lock-up
arrangements that could deter a merger or similar transaction maximizing
stockholder value unless GWF stockholders approve the arrangement (Consent
Proposal 2), (c) requiring GWF to hold its annual meeting of stockholders on
the fourth Tuesday in April in each year, or on a date within 14 days thereof
(Consent Proposal 3), (d) preventing the adjournment of any meeting of
stockholders at which a quorum is present unless all business properly brought
has been acted upon by the GWF stockholders (Consent Proposal 4) and (e)
preventing the GWF Board from subsequently amending any of the by-laws adopted
pursuant to the Consent Solicitation unless it has the approval of a majority
of the GWF stockholders (Consent Proposal 5). Under the DGCL, stockholder
action taken by written consent is effective at the time that valid, unrevoked
consents representing the number of shares required to take the action are
delivered to the corporation. Each of Ahmanson's Consent Proposals required a
majority of outstanding GWF Shares for adoption.     
       
          
  On April 9, 1997, Ahmanson delivered to GWF consents to Consent Proposals 3,
4 and 5 that represented more than the requisite majority of the outstanding
GWF Shares, based on Ahmanson's calculations. The results were certified on
April 28, 1997 by CT Corporation, the independent inspectors of election
appointed by GWF. However, in tabulating consents, CT Corporation counted as
valid a consent card representing an inadvertent double vote by a GWF
stockholder (who had requested that CT Corporation not consider the double
vote). Ahmanson had never relied on the double voted shares for its majority
of consents on the three Proposals, and Ahmanson formally requested the
inspectors to recertify the tabulation of consents, excluding any shares that
may have been double counted. On May 5, 1997, CT Corporation re-certified the
adoption of Consent Proposal 3 as of April 9, 1997 and, on May 12, 1997, CT
Corporation re-certified the adoption of Consent Proposals 4 and 5 as of
April 10, 1997. GWF filed an action in Delaware court disputing CT
Corporation's original certification of the adoption of Proposals 3, 4 and 5.
Although this action is pending, Ahmanson is confident that GWF's litigation
will not materially affect the certified results.     
   
  As of the date of this Prospectus, there has been no formal tabulation or
certification of the results of Ahmanson's solicitation with respect to
Consent Proposal 1. CT Corporation has stated that it will officially tabulate
consents with respect to Consent Proposal 1 only if GWF instructs it as to the
record date for the stockholders entitled to give consents or otherwise
authorizes CT Corporation to do so. GWF claims that the record date set by the
GWF Board for the Consent Solicitation no longer applied to Consent Proposal 1
after it was revised by Ahmanson on March 17, 1997 in response to GWF's
entering into a merger agreement with WAMU, and GWF is unwilling to otherwise
authorize CT Corporation to tabulate. However, based on Ahmanson's review of
the consent cards and revocations during the challenge process relating to
Consent Proposals 3, 4 and 5, Ahmanson is confident that, if CT Corporation
were permitted to tabulate the results, that tabulation would show that
Consent Proposal 1 was adopted by the requisite majority of outstanding GWF
Shares     
 
                                      37
<PAGE>
 
   
no later than April 14, 1997 (although probably not on April 11). Ahmanson
filed a complaint in Delaware court on April 14, 1997 which seeks an order
declaring that the record date for Consent Proposal 1 was March 13, 1997 and
compelling a tabulation and report of the consents delivered on Consent
Proposal 1. Ahmanson's action is still pending.     
          
  Consents representing the number of GWF Shares necessary to adopt Consent
Proposal 2 were never delivered and Ahmanson is no longer soliciting consents.
    
          
  The full text of each of the Consent Proposals adopted by GWF stockholders
is set forth below:     
   
  Consent Proposal 1: Adopt the following non-binding resolution:     
     
  "RESOLVED, that the stockholders of Great Western Financial Corporation
  ("Great Western") urge the Great Western Board of Directors (the "Great
  Western Board"), if requested by H. F. Ahmanson & Company ("Ahmanson") or
  any other person making a bona fide and concrete merger proposal, to
  provide all nonpublic information given to Washington Mutual, Inc. to
  Ahmanson or such other person and to participate in discussions and
  negotiations with, and consider each and every bona fide and concrete
  merger proposal made by, Ahmanson or such other person and otherwise to
  facilitate any effort or attempt by Ahmanson or such other person to make
  or implement a merger proposal in order to maximize stockholder value.
  Furthermore, in evaluating any merger proposal, the Great Western Board
  shall take into account the potential that the Great Western Stockholders
  will receive a substantial portion of the value of the cost savings
  resulting from a merger with Ahmanson or, if applicable, such other
  person."     
   
  Consent Proposal 2: Adopt the following non-binding resolution:     
     
  "RESOLVED, that the stockholders of Great Western Financial Corporation
  ("Great Western") urge the Great Western Board of Directors (the "Great
  Western Board") not to grant, without the prior approval of a majority of
  the stockholders of Great Western having voting power, third party break-up
  fees, stock options, "crown jewel" options or other lock-up arrangements in
  connection with an "Acquisition Transaction" as hereinafter defined, unless
  such agreement contains a provision ensuring that the aggregate value of
  all such break up fees, stock options, "crown jewel" options and other
  lock-up arrangements can never exceed $100,000,000; "Acquisition
  Transaction" means any merger, consolidation or similar transaction
  involving, or any purchase of all or any substantial portion of the assets,
  deposits or any equity securities of, Great Western or any of its
  subsidiaries."     
   
  Consent Proposal 3: Amend Section 2 of the By-laws of GWF by replacing the
first sentence thereof with the following sentence:     
     
  "The annual meeting of the stockholders of the Corporation shall be held on
  the fourth Tuesday in April in each year, or on a date within 14 days
  thereof, at such time and place, within or without the State of Delaware,
  as may be specified in the notice thereof, as shall be fixed by the Board
  of Directors, for the purpose of electing directors and for the transaction
  of only such other business as is properly brought before such meeting in
  accordance with these by-laws."     
   
  Consent Proposal 4: Amend Section 6 of the By-laws of GWF by replacing the
first sentence thereof with the following three sentences:     
     
  "The holders of a majority of the stock of the Corporation having voting
  power present in person or by proxy shall constitute a quorum. In the event
  a quorum is not present, the presiding officer at the meeting or the
  stockholders present, although less than a quorum, shall have the power to
  adjourn or postpone such meeting from time to time without notice. In the
  event that a quorum is present, the presiding officer shall     
 
                                      38
<PAGE>
 
     
  not take any action to adjourn such meeting until all business properly
  brought before such meeting has been acted upon by the stockholders of the
  Corporation."     
   
  Consent Proposal 5: Amend the By-laws of GWF by adding a new Section 25
thereto which reads in its entirety as follows:     
     
  "Section 25. Neither this Section 25 nor any of the By-law provisions added
  or changed by consent of stockholders as contemplated by the Consent
  Statement dated March 3, 1997, provided by H. F. Ahmanson & Company, may be
  amended or repealed without the affirmative vote of the holders of a
  majority of the stock of the Corporation having voting power."     
       
       
       
          
 The Proxy Solicitation     
   
  Ahmanson announced on February 18, 1997 (the day it announced the Original
Proposal) that it had determined to nominate the Ahmanson Nominees, each of
whom is independent of (and not affiliated with or controlled by) Ahmanson,
for election as directors of GWF at the GWF Annual Meeting. On February 25,
1997, GWF announced that it had indefinitely postponed the GWF Annual Meeting,
originally scheduled for April 22, 1997. As discussed below, GWF later
scheduled the GWF Annual Meeting for June 13, 1997.     
   
  Ahmanson believes that the current members of the GWF Board (who
collectively own beneficially less than 1.5% and appear to actually own less
than 0.4% of the Shares) should not deprive GWF's stockholders of the
opportunity to have their Shares accepted in the Offer or to consider any
other bona fide and concrete merger proposals. The Ahmanson Nominees have
agreed that as directors they will act "on behalf of all of the stockholders
of [GWF]...and will in no way be controlled by or acting at the direction of
Ahmanson." Ahmanson has agreed to make a contribution of $15,000 to charity on
behalf of each Ahmanson Nominee and to indemnify the Ahmanson Nominees against
various liabilities. They have committed to seek to convince the other GWF
directors to pursue merger proposals with a view to maximizing stockholder
value. In particular, the Ahmanson Nominees have committed to seek to convince
the other GWF directors to consider Ahmanson's proposal for a merger with GWF
and all other bona fide and concrete proposals to merge with GWF and, subject
to their fiduciary duties, actively pursue the proposal that they conclude
maximizes value for GWF's stockholders. Any such proposal would, of course,
then be subject, among other things, to stockholder and regulatory approval.
In light of the agreement of the Ahmanson Nominees to act on behalf of all of
the GWF stockholders and the fiduciary duties that they will owe to GWF
stockholders, Ahmanson would expect that the Ahmanson Nominees (a) would
support the conduct of negotiations and discussions with any company that
makes a bona fide proposal and support whichever proposal provides the best
value to GWF stockholders, whether that proposal is made by WAMU, Ahmanson or
a third party, and (b) would support the solicitation of offers by other
parties if they determine that doing so is in the best interests of the GWF
stockholders and would support the removal of any barriers to a sale that are
likely to reduce the value to be received by the GWF stockholders. Any such
actions to be taken by the Ahmanson Nominees would be subject to the
provisions of the GWF/WAMU Merger Agreement, which require that certain
actions to facilitate merger proposals from third parties be taken only after
a determination by the GWF Board that the failure to take such actions would
create a reasonable possibility of a breach of its fiduciary duties.     
   
  Based on the certified results for Consent Proposal 3, the amendment to the
GWF By-laws requiring GWF to hold the GWF Annual Meeting by May 6, 1997 was
adopted by the holders of a majority of the outstanding Shares on April 9,
1997. On that date, Ahmanson amended its complaint in Delaware Court to seek
an order compelling GWF to hold the GWF Annual Meeting in accordance with the
amended By-law. See "--Litigation" below. On April 11, 1997, GWF announced
that its Annual Meeting would be held on June 13, 1997, with a record date for
stockholders entitled to vote of May 9, 1997. The meeting date set by GWF is
more than one month after the date required by the new By-law amendment
adopted by GWF stockholders (Consent Proposal 3) and 21 days after the date on
which a Delaware court may order GWF to hold the GWF Annual Meeting under
Delaware law. As a result of the delay in GWF's acknowledgment of the adoption
of the new By-law amendment and GWF's apparent disregard of its original By-
law, which required the GWF Board to call a     
 
                                      39
<PAGE>
 
   
special stockholders' meeting for the election of directors to be held as soon
as practicable after the designated day (April 22, 1997), Ahmanson believes
that it is no longer practicable for GWF to hold a meeting for the election of
directors on a date meaningfully before June 13. Accordingly, Ahmanson
informed the Delaware Chancery Court on May 8, 1997 that it would no longer
seek to advance the date for the GWF Annual Meeting. Ahmanson is seeking,
however, an injunction requiring a six-week period of time between the
certification of the results of the election of directors at the GWF Annual
Meeting and any special stockholders' meeting called by GWF for the purpose of
approving the Proposed GWF/WAMU Merger.     
   
  In addition to nominating the Ahmanson Nominees, Ahmanson has introduced
five proposals to amend the GWF By-laws (the "Ahmanson By-law Amendments"),
described below, for consideration at the GWF Annual Meeting. The Ahmanson By-
law Amendments are intended to ensure that the Offer is dealt with fairly and
in accordance with sound principles of corporate governance and that the views
of the GWF stockholders and the Ahmanson Nominees are considered by the entire
GWF Board. A summary of the effect of each of the Ahmanson By-law Amendments
is set forth below.     
   
  Amendment 1 would amend the GWF By-laws to allow holders of 10% of the
Shares to call special meetings and provide that the designee of the
stockholders calling the meeting presides at the meeting. The calling of a
special meeting by stockholders could cause GWF to incur certain expenses and
administrative burdens that it would not otherwise incur under its existing
corporate governance arrangements, but Ahmanson believes that, in light of
GWF's refusal to deal evenhandedly with the Ahmanson Merger Proposal despite
what Ahmanson believes is the majority support of the GWF stockholders for a
stockholder resolution urging it to do so, the potential benefit to
stockholders of increasing the opportunities to express their views outweighs
such burdens.     
   
  Amendment 2 would amend the GWF By-laws to prohibit the GWF Board from
filling any vacancy on the GWF Board with any person who was previously
nominated as a Director and lost in an election. The effect of Amendment 2 is
to prevent the GWF Board from reinstalling a person whom the stockholders have
affirmatively voted out of office or not elected. Ahmanson recognizes that a
vote for one director-nominee is not necessarily intended as a vote against
the alternative nominee. However, this proposal would prevent the entrenchment
of directors who, although they may be qualified to serve as directors, have
failed to obtain the requisite support of stockholders.     
   
  Amendment 3 would amend the GWF By-laws to ensure that, if any Ahmanson
Nominees are elected, at least one Ahmanson Nominee would be represented on an
executive committee of the GWF Board, if one is created, or on any other
committee of the GWF Board that exercises powers that are currently or would
normally be exercised by an executive committee or only by the full GWF Board,
including the power to review any merger proposal. The effect of Amendment 3
would be to prevent an executive or similar committee of the GWF Board from
taking actions without the knowledge of or input from an Ahmanson Nominee.
Ahmanson does recognize, however, that the intentional failure on the part of
one or more members of the board of directors of a corporation to provide
information to certain other members of the board could, under certain
circumstances, constitute a breach of fiduciary duty to the stockholders.     
   
  Amendment 4 would amend the GWF By-laws to provide that certain matters
(e.g., acquisition transactions, amendment of the GWF Rights Plan, adoption of
any similar rights agreement, amendment of the GWF By-laws, or any other
action that would preclude or make more expensive or more difficult a merger
with or an acquisition of GWF by any person that has made a bona fide and
concrete proposal to merge with or acquire GWF or would favor one potential
acquiror over another) can only be acted on by the GWF Board if those matters
are specifically described (with appropriate details) in a notice which must
be given for the GWF Board meeting. The effect of Amendment 4 would provide
the Ahmanson Nominees with advance notice of such actions. Because the
Ahmanson Nominees will have fiduciary duties to all stockholders, this does
not mean that Ahmanson will be privy to such information. This advance notice
will enable the Ahmanson Nominees to act in a prepared manner and receive any
necessary independent advice.     
 
                                      40
<PAGE>
 
   
  Amendment 5 would amend GWF's By-laws to prevent the GWF Board from
subsequently amending any of the Ahmanson By-law Amendments adopted at the GWF
Annual Meeting unless it has the approval of a majority vote of the GWF
stockholders. The effect of Amendment 5 would ensure that the GWF Board cannot
circumvent the will of the stockholders by subsequently amending or modifying
the adopted Ahmanson By-law Amendments.     
          
  If the Merger is consummated, Ahmanson expects that the by-laws of the
combined company would be the current by-laws of Ahmanson. Those by-laws do
not contain the provisions proposed by Amendments 1 through 5 above.     
   
  Adoption of the Ahmanson By-law Amendments requires the affirmative vote of
the holders of a majority of the Shares represented in person or by proxy and
entitled to vote on the matter, assuming the presence of a quorum at the GWF
Annual Meeting.     
   
LITIGATION     
   
  On February 18, 1997, Ahmanson filed a complaint against GWF and the members
of the GWF Board in the Delaware Chancery Court which, among other things,
generally seeks injunctive relief (a) against any application of the GWF
Rights Plan to impede the proposed merger of Ahmanson and GWF, (b) requiring
the GWF Board to exempt such merger from the operation of Section 203 of the
DGCL and (c) prohibiting GWF and the members of the GWF Board from adopting
any defensive measure that would have the effect of impeding or interfering
with the proposed merger or Ahmanson's solicitation of proxies for the GWF
Annual Meeting.     
          
  On February 26, 1997, GWF filed an answer, affirmative defenses and
counterclaim against Ahmanson seeking, among other things, that the Delaware
Chancery Court (a) dismiss Ahmanson's complaint, (b) declare Ahmanson's
proposed by-law amendment limiting the GWF Board's use of defensive measures
to be invalid and (c) issue a temporary restraining order preventing Ahmanson
from soliciting stockholder consents in favor of the proposed by-law. On
February 28, the Delaware Chancery Court denied GWF's request for a
restraining order and permitted the Consent Solicitation to proceed. On March
17, 1997, Ahmanson and GWF notified the Delaware Chancery Court that, in light
of Ahmanson's revision of the previously proposed by-law relating to GWF's use
of defensive measures into a non-binding advisory resolution, GWF's motion for
partial summary judgment relating to such proposal had become moot and,
accordingly, no hearing or relief on the motion was necessary.     
   
  On March 18, 1997, Ahmanson filed an answer and affirmative defenses to
GWF's counterclaim in the Delaware Chancery Court, denying all the material
allegations of GWF's counterclaim and asserting that, among other things, (a)
the GWF counterclaim fails to state a claim upon which relief can be granted,
(b) the Delaware Chancery Court lacks subject matter jurisdiction over GWF's
disclosure claims, (c) the relief requested by GWF is barred by virtue of its
unclean hands, and (d) the allegations as stated in the counterclaim are not
ripe for adjudication, and, if they have ever been ripe, they have been
rendered moot by subsequent events.     
   
  Between February 18, 1997 and March 18, 1997, various stockholders of GWF
filed complaints against GWF and the members of the GWF Board in Delaware
Chancery Court. Each action was brought on behalf of the plaintiffs,
individually, and as a purported class action on behalf of all stockholders of
GWF. The various complaints allege, among other things, that GWF and its
directors are violating their fiduciary duties owed to stockholders of GWF by
failing to hold an auction for GWF, failing to negotiate the acquisition of
GWF with all interested parties, failing to provide a level playing field
through the use of Lock-up Fees in the GWF/WAMU Merger Agreement and through
the employment of the Rights Plan, and by acting to entrench themselves by
favoring WAMU at the expense and to the detriment of the stockholders of GWF.
The complaints generally seek, among other things, an order (a) declaring that
the action may be maintained as a class action, (b) ordering the GWF directors
to carry out their fiduciary duties and requiring them to respond in good
faith to all bona fide potential acquirors of GWF, (c) preliminarily and
permanently enjoining the implementation of the GWF Rights Plan, as amended,
and the delivery of Rights thereunder except in an equitable manner in order
to maximize GWF stockholder value, (d) rescinding the severance agreements to
be paid to the GWF directors and the Lock-up Fees to be paid to WAMU, (e)
enjoining any transaction between GWF and WAMU which does not maximize     
 
                                      41
<PAGE>
 
   
stockholder value, (f) awarding plaintiffs compensatory damages, the costs and
disbursements of the action, and such other and further relief as may be just
and proper. GWF and its directors have denied the operative allegations in
such complaints. The foregoing description of stockholder complaints against
GWF is based on information made publicly available by GWF in its preliminary
proxy statement, dated April 15, 1997, for the GWF Annual Meeting.     
   
  On March 3, 1997, Ahmanson filed a complaint against GWF pursuant to Section
220 of the DGCL in the Delaware Chancery Court to compel GWF to make available
for inspection and copying by Ahmanson a list of stockholders of GWF and other
related information for proper purposes related to Ahmanson's interest as a
stockholder of GWF. Ahmanson requested, among other things, that the Court
enter an order directing GWF to provide Ahmanson with the requested
information. On March 6, 1997, GWF provided Ahmanson with all of the requested
information. On March 7, 1997, GWF mailed a letter to Ahmanson requesting that
Ahmanson dismiss the complaint requesting the information as moot and on March
17, 1997, Ahmanson filed a notice of dismissal of the action.     
   
  On March 21, 1997 Ahmanson filed an amended and supplemental complaint in
the Delaware Chancery Court, which, in addition to the allegations made in the
complaint filed February 18, 1997 by Ahmanson, further alleges that GWF and
its directors (a) have failed to create a level playing field by
discriminatorily favoring other potential bidders to the exclusion of Ahmanson
and by entering into the WAMU/GWF Merger Agreement, (b) have actively and
unlawfully sought to thwart the GWF stockholders from exercising their voting
rights, (c) have breached their obligation to find the best value reasonably
available to GWF stockholders, and (d) have irreparably harmed Ahmanson by
depriving it of the unique opportunity to acquire GWF. Ahmanson's complaint
seeks, among other things, an order (a) declaring that the GWF directors have
unlawfully interfered with and impeded the voting rights of GWF stockholders
and that they have breached their fiduciary duties, (b) declaring that the GWF
directors have unlawfully tilted the playing field by putting GWF up for sale
while discriminatorily favoring potential bidders other than Ahmanson,
including, but not limited to WAMU, (c) enjoining GWF and its directors from
taking any action to delay, impede, postpone or thwart the voting rights of
GWF stockholders, (d) compelling GWF and its directors to hold the GWF Annual
Meeting as scheduled and to treat Ahmanson and all prospective bidders equally
and (e) enjoining GWF and its directors from tilting the playing field or
discriminating against Ahmanson in favor of other bidders and from taking any
steps to consummate a merger or other transaction with WAMU.     
          
  On April 14, 1997, Ahmanson filed a second amended and supplemental
complaint for declaratory and injunctive relief in the Delaware Chancery
Court, which in addition to the relief being sought by the complaint filed
February 18, 1997 and the amended and supplemental complaint filed March 21,
1997 by Ahmanson, further seeks, among other things, an order (a) declaring
that the record date for the Consent Solicitation is March 13, 1997, (b)
declaring that failure to redeem the Rights attached to the Shares or to
otherwise amend the GWF Rights Plan to make it inapplicable the Ahmanson
Proposal and to render Section 203 of the Delaware Corporation Law
inapplicable to the Ahmanson Merger Proposal constitutes a breach of the
fiduciary duties of the GWF directors, (c) declaring that the adoption of any
defensive measure which has the effect of impeding, thwarting, frustrating or
interfering with the Ahmanson Merger Proposal, the Proxy Solicitation or the
Consent Solicitation constitutes a breach of the fiduciary duties of the GWF
directors and that GWF and its directors are enjoined from adopting any such
measure, (d) compelling GWF and its directors to recognize the validity of
consents executed and delivered by GWF stockholders of record as of March 13,
1997, (e) compelling GWF and its directors to redeem the Rights attached to
the Shares associated with the GWF Rights Plan so as to make it inapplicable
to the Ahmanson Merger Proposal, and enjoining GWF and its directors from
taking any action to implement, distribute or recognize any rights or powers
with respect to the Rights (other than to redeem the Rights), and from taking
any actions pursuant to the GWF Rights Plan that would dilute or interfere
with Ahmanson's voting rights or in any way discriminate against Ahmanson in
the exercise of its rights with respect to its GWF stock, (f) compelling GWF
and its directors to approve the Ahmanson Merger Proposal for the purposes of
Section 203 of the DGCL, and enjoining GWF and its directors from taking any
actions to enforce or apply Section 203 of the DGCL that would impede, thwart,
frustrate or interfere with the Ahmanson Merger     
 
                                      42
<PAGE>
 
   
Proposal, (g) declaring that the GWF directors have breached their fiduciary
duty of disclosure, and (h) compelling GWF to disclose (i) the risk to GWF's
ability to enter into a pooling transaction in light of its 1996 modifications
to its benefit plans, (ii) whether the 1996 modifications and the increased
stock options were in contemplation of a combination, (iii) whether during
1996, GWF had any substantive internal discussion or discussions with third
parties about any business combinations, and (iv) how GWF plans to overcome
the presumption that the changes in equity interest were in contemplation of
the combination.     
   
  On April 9, 1997, Ahmanson filed a complaint against GWF pursuant to Section
225 of the DGCL (the "225 Complaint") in the Delaware Chancery Court which
alleges, among other things, that written consents executed by the record
holders of a majority of the outstanding Shares on March 13, 1997 were
delivered to GWF on April 9, 1997 that were effective at the time of delivery
to adopt Consent Proposal 3. Ahmanson is seeking an order (i) declaring that
Consent Proposal 3 was duly and validly adopted on April 9, 1997, and
(ii) compelling GWF to hold the GWF Annual Meeting on or before May 6, 1997.
       
  On April 11, 1997, Ahmanson filed an amended complaint against GWF and its
directors pursuant to Section 225 of the DGCL (the "Amended 225 Complaint") in
the Delaware Chancery Court. In addition to the allegations made in the 225
Complaint, the Amended 225 Complaint alleges, among other things, that:
(i) Consent Proposal 3 was effective at the time the consents were delivered,
and (ii) by their actions in announcing a May 9, 1997 record date and setting
a meeting for election of directors for June 13, 1997, GWF's directors
violated Consent Proposal 3 and the provisions of GWF's By-laws regarding
special meetings for the election of directors and their fiduciary duties. In
addition to the relief sought in the 225 Complaint, Ahmanson's Amended 225
Complaint seeks an order enjoining GWF from scheduling or holding any vote on
any proposed transaction, including but not limited to the Proposed GWF/WAMU
Merger, prior to two weeks following the certification of the election of
directors. On April 16, 1997, after the parties had exchanged discovery
requests, GWF filed a motion to dismiss and for a protective order.     
   
  On April 18, 1997, Ahmanson filed a second amended complaint pursuant to
Section 225 of the DGCL (the "Second Amended 225 Complaint") in the Delaware
Chancery Court. In addition to the allegations made in the Amended 225
Complaint, Ahmanson alleges in the Second Amended 225 Complaint that the GWF
Board manipulated the date of the annual meeting in violation of the fiduciary
duties it owes to the GWF stockholders. In support of this claim, Ahmanson
alleges that the GWF Board has postponed the date of the annual meeting and
refused to commit to hold the annual meeting prior to the vote on the Proposed
GWF/WAMU Merger for the purpose of extending unilaterally the term of the GWF
directors who were originally slated to stand for election on April 22, 1997,
and to permit those directors to avoid standing for election.     
   
  On April 21, 1997, GWF filed a motion to dismiss Ahmanson's claims in the
Second Amended 225 Complaint that (i) GWF violated the provisions of its by-
laws relating to special meetings for election of directors ("Count IV") and
(ii) the GWF Board manipulated the date of the annual meeting in violation of
the fiduciary duties it owes to GWF's stockholders ("Count V"). By opinion
dated April 25, 1997, the Delaware Court of Chancery denied GWF's motion with
respect to Count IV and granted GWF's motion with respect to Count V only to
the extent that it sought relief prior to GWF's annual meeting.     
   
  On May 8, 1997, Ahmanson filed a letter with the Delaware Chancery Court
(a) informing the Court that it was no longer seeking to compel GWF to hold
the GWF Annual Meeting prior to June 13, 1997 and (b) seeking an order
requiring a six-week period of time between the certification of the election
of GWF directors at the GWF Annual Meeting and a special meeting of GWF
stockholders called to approve the Proposed GWF/WAMU Merger.     
   
  Ahmanson has publicly announced that, if it is successful in its action to
invalidate the provisions for Lock-up Fees in the GWF/WAMU Merger Agreement
and the proposed merger of Ahmanson with GWF is consummated, Ahmanson would
return the amount of expenses thereby saved by the combined company by paying
a pro rata portion of such savings to stockholders of GWF for each share of
GWF Common Stock converted in the proposed merger. The consummation of the
Offer is not conditioned on the success of     
 
                                      43
<PAGE>
 
   
Ahmanson's legal challenge to the arrangements for Lock-up Fees. However,
Ahmanson intends to vigorously pursue its challenge to the Lock-up Fees in
Delaware Chancery Court. For purposes of the pro forma combined financial
information contained herein and the estimates of cost savings and merger-
related expenses related to the Proposed Merger described above under "--
Reasons for the Combination", however, Ahmanson has assumed that the Lock-up
Fees would be payable to WAMU upon the consummation of the Proposed Merger. In
the event that Ahmanson and GWF enter into a definitive merger agreement and
the Lock-up Fee arrangements are invalidated, Ahmanson would amend or
supplement this Prospectus as necessary or appropriate at such time to reflect
the proposed payment of the combined company's savings of Lock-up Fees to
holders of GWF Common Stock, including by updating the description contained
herein of certain tax consequences of the Merger to such holders.     
       
       
                                      44
<PAGE>
 
                                   
                                THE OFFER     
   
GENERAL     
   
  Ahmanson hereby offers, upon the terms and subject to the conditions of the
Offer, to exchange a number of shares of Ahmanson Common Stock (including the
associated Ahmanson Rights) equal to the Exchange Ratio, with cash being paid
in lieu of fractional shares, for each outstanding Share validly tendered on
or prior to the Expiration Date and not withdrawn. The term "Expiration Date"
shall mean 12:00 Midnight, New York City time, on [      ], 1997, unless and
until Ahmanson extends the period of time for which the Offer remains open, in
which event the term "Expiration Date" shall mean the latest time and date at
which the Offer, as so extended by Ahmanson, shall expire. Each tendering
stockholder who would otherwise be entitled to a fractional share of Ahmanson
Common Stock will receive cash in an amount (rounded to the nearest $.01)
equal to such fraction (expressed as a decimal and rounded to the nearest 0.01
of a share) times the per share closing price of Ahmanson Common Stock on the
NYSE on the NYSE trading day immediately preceding the date such stockholder's
Shares are accepted for exchange by Ahmanson.     
   
  On [     ], 1997, the last trading day prior to the date of this Prospectus,
the closing price per share of Ahmanson Common Stock was $[  ] and the closing
price per Share was $[  ]. Based on that closing price (and assuming the
average closing price of the Ahmanson Common Stock on the NYSE during the
Averaging Period is equal to such closing price), the Exchange Ratio would be
[  ] and the Offer would have an implied market value of $[  ] per Share. This
represents a premium of $[  ] per Share, or [  ]%, over the implied market
value of the Proposed GWF/WAMU Merger.     
   
  The following table sets forth the Exchange Ratio and implied market value
per Share of the Offer over a range of market prices for Ahmanson Common Stock
from $32.00 to $46.00 per share (assuming for each indicated market price of
Ahmanson Common Stock that the average closing price of Ahmanson Common Stock
during the Averaging Period is equal to such market price):     
 
<TABLE>   
<CAPTION>
       MARKET PRICE
       PER SHARE OF                                                        IMPLIED MARKET
         AHMANSON                   EXCHANGE                             VALUE OF THE OFFER
       COMMON STOCK                  RATIO                                 PER GWF SHARE
       ------------                 --------                             ------------------
       <S>                          <C>                                  <C>
       $32.00                        1.200                                     $38.40
        33.00                        1.200                                      39.60
        34.00                        1.200                                      40.80
        35.00                        1.200                                      42.00
        36.00                        1.200                                      43.20
        37.00                        1.200                                      44.40
        38.00                        1.200                                      45.60
        39.00                        1.200                                      46.80
        40.00                        1.200                                      48.00
        41.00                        1.200                                      49.20
        41.67                        1.200                                      50.00
        42.00                        1.190                                      50.00
        43.00                        1.163                                      50.00
        44.00                        1.136                                      50.00
        45.00                        1.111                                      50.00
        45.45                        1.100                                      50.00
        46.00                        1.100                                      50.60
</TABLE>    
          
  Tendering stockholders will not be obligated to pay any charges or expenses
of the Exchange Agent or any brokerage commissions. Except as set forth in the
Instructions to the Letter of Transmittal, transfer taxes on the exchange of
Shares pursuant to the Offer will be paid by or on behalf of Ahmanson.     
 
                                      45
<PAGE>
 
   
  The purpose of the Offer is for Ahmanson to acquire control of GWF and is a
first step of Ahmanson's plan to acquire the entire common equity interest in
GWF. Ahmanson intends, as promptly as practicable after consummation of the
Offer, to seek to have GWF consummate the Merger with Ahmanson in which each
outstanding Share (except for treasury shares of GWF and Shares held by
Ahmanson or any subsidiary of Ahmanson other than in a fiduciary capacity)
would be converted into a number of shares of Ahmanson Common Stock equal to
the Exchange Ratio. See "--Purpose of the Offer; The Merger".     
   
  In the event that Ahmanson acquires all of the Shares (excluding Shares
owned by Ahmanson) pursuant to the Offer and the Merger is consummated, former
stockholders of GWF would own approximately 62% of the outstanding shares of
Ahmanson Common Stock upon consummation of the Merger, based on the number of
Shares outstanding on March 31, 1997 and assuming the maximum Exchange Ratio
of 1.20. If 51% of the Shares (excluding Shares owned by Ahmanson) are
exchanged and the Merger is not consummated, such ownership percentage would
be approximately 45%.     
   
  Ahmanson's obligation to exchange shares of Ahmanson Common Stock for Shares
pursuant to the Offer is conditioned upon satisfaction of the Minimum Tender
Condition, the Ahmanson Stockholder Approval Condition, the Rights Plan and
DGCL 203 Condition, the GWF/WAMU Merger Agreement Condition and the Regulatory
Approvals Condition (in each case as defined on the cover page of this
Prospectus) and certain other conditions set forth under "--Certain Other
Conditions of the Offer".     
          
  According to GWF's earnings release for the quarter ended March 31, 1997,
there were 137,885,310 Shares outstanding. As of the date of this Prospectus,
Ahmanson beneficially owned 3,560,500 Shares.     
   
  Requests will be made to GWF for use of GWF's stockholder list and security
position listings for the purpose of communications with stockholders and
disseminating the Offer to holders of Shares. The Prospectus and the related
Letter of Transmittal and other relevant materials will be mailed to record
holders of Shares and will be furnished to brokers, dealers, commercial banks,
trust companies and similar persons whose names, or the names of whose
nominees, appear on the stockholder list or, if applicable, who are listed as
participants in a clearing agency's security position listing for subsequent
transmittal to beneficial owners of Shares by Ahmanson following receipt of
such list or listings from GWF.     
   
TIMING OF THE OFFER     
   
  The Offer is currently scheduled to expire on [      ], 1997; however, it is
Ahmanson's current intention to extend the Offer from time to time as
necessary until all conditions to the Offer have been satisfied or waived. See
"--Extension, Termination and Amendment". Ahmanson expects that the Ahmanson
Stockholder Approval Condition will be satisfied by [      ], 1997 (the date
on which it intends to call the Ahmanson Meeting to approve the Ahmanson
Charter Amendment and the issuance of shares of Ahmanson Common Stock pursuant
to the Offer and the Merger) and that the other conditions to the Offer will
be satisfied once the Regulatory Approvals Condition, the GWF/WAMU Merger
Condition and the Rights Plan and DGCL 203 Condition are satisfied.     
   
  Ahmanson believes that it will be able to obtain the regulatory approvals
required for the Combination on a timely basis and without the imposition of
any condition that would have a material adverse effect on the combined
company. However, the regulatory approvals process is such that Ahmanson can
give no definitive assurance that any Requisite Regulatory Approval will be
obtained or, if obtained, will be obtained on a timely basis and without the
imposition of other material conditions. See "--Certain Other Conditions to
the Offer" and "--Regulatory Approvals Condition".     
   
  Ahmanson continues to seek to enter into a negotiated merger agreement with
GWF based on the Ahmanson Merger Proposal submitted to the GWF Board on March
17, 1997, which proposed a merger of Ahmanson and GWF pursuant to which Shares
would be converted into shares of Ahmanson Common Stock at an exchange ratio
identical to the Exchange Ratio for the Offer, except that the exchange ratio
in the Ahmanson Merger Proposal would be determined based on an average
closing price for Ahmanson Common Stock on the 20 trading     
 
                                      46
<PAGE>
 
   
days preceding the OTS' approval of the proposed merger (rather than 20
trading days ending on the third trading day prior to the Expiration Date, as
in the case of the Offer). Ahmanson expects that in the event GWF and Ahmanson
reach such an agreement, GWF would take such actions as are necessary to cause
the satisfaction of the Rights Plan and DGCL 203 Condition. Ahmanson reserves
the right to amend the Offer, including upon entering into a merger agreement
with GWF, or to negotiate a merger agreement with GWF not involving an
exchange offer and pursuant to which Ahmanson would terminate the Offer and
the Shares would, upon consummation of such merger, be converted into shares
of Ahmanson Common Stock, cash and/or other securities in such amounts as are
negotiated by Ahmanson and GWF. Ahmanson would expect that any such merger
agreement would include conditions to the consummation of the merger that are
substantially the same as the conditions contained in the GWF/WAMU Merger
Agreement, except that a GWF/Ahmanson merger would not be conditioned on the
qualification of such merger for "pooling of interests" accounting treatment.
       
  If GWF schedules a special stockholders' meeting to vote on the GWF/WAMU
Merger Agreement and GWF's stockholders do not approve the GWF/WAMU Merger
Agreement, the GWF/WAMU Merger Agreement Condition would then be satisfied.
Ahmanson believes at that point (and in light of the GWF stockholders'
ability, if necessary, to adopt a by-law accelerating the next annual meeting
of GWF stockholders to January 2, 1998 and to elect a majority of the GWF
Board (including those to be elected at the GWF Annual Meeting) by that date),
the GWF Board would respect the vote of GWF's stockholders and remove the
obstacles it is maintaining to the Offer and the Merger, thereby satisfying
the Rights Plan and DGCL 203 Condition. Ahmanson also intends to pursue its
currently pending litigation in order to satisfy the Rights Plan and DGCL 203
Condition. For further information about the Rights Plan and DGCL 203
Condition and Ahmanson's plans for satisfying it, see "--Rights Plan and DGCL
203 Condition".     
          
EXTENSION, TERMINATION AND AMENDMENT     
   
  Ahmanson expressly reserves the right, in its sole discretion, at any time
or from time to time, to extend the period of time during which the Offer is
to remain open by giving oral or written notice of such extension to the
Exchange Agent, which extension must be announced no later than 9:00 A.M., New
York City time, on the next business day after the previously scheduled
Expiration Date. There can be no assurance that Ahmanson will exercise its
right to extend the Offer. However, it is Ahmanson's current intention to
extend the Offer until all conditions have been satisfied or waived. See "--
Extension, Termination and Amendment." During any such extension, all Shares
previously tendered and not withdrawn will remain subject to the Offer,
subject to the right of a tendering stockholder to withdraw such stockholder's
Shares. See "--Withdrawal Rights."     
   
  Subject to the applicable rules and regulations of the Commission, Ahmanson
also reserves the right, in its sole discretion, at any time or from time to
time, (i) to delay acceptance for exchange of or, regardless of whether such
Shares were theretofore accepted for exchange, to delay exchange of any Shares
pursuant to the Offer or to terminate the Offer and not accept for exchange or
exchange any Shares not theretofore accepted for exchange, or exchanged, upon
the failure of any of the conditions of the Offer to be satisfied and (ii) to
waive any condition (other than the Ahmanson Stockholder Approval Condition
and the Regulatory Approvals Condition) or otherwise amend the Offer in any
respect, by giving oral or written notice of such delay, termination or
amendment to the Exchange Agent and by making a public announcement thereof.
Any such extension, termination, amendment or delay will be followed as
promptly as practicable by public announcement thereof, such announcement in
the case of an extension to be issued no later than 9:00 A.M., New York City
time, on the next business day after the previously scheduled Expiration Date.
Subject to applicable law (including Rules 14d-4(c) and 14d-6(d) under the
Exchange Act, which require that any material change in the information
published, sent or given to stockholders in connection with the Offer be
promptly disseminated to stockholders in a manner reasonably designed to
inform stockholders of such change) and without limiting the manner in which
Ahmanson may choose to make any public announcement, Ahmanson shall have no
obligation to publish, advertise or otherwise communicate any such public
announcement other than by making a release to the Dow Jones News Service.
       
  If Ahmanson makes a material change in the terms of the Offer or the
information concerning the Offer, or if it waives a material condition of the
Offer, Ahmanson will extend the Offer to the extent required under the     
 
                                      47
<PAGE>
 
   
Exchange Act. If, prior to the Expiration Date, Ahmanson shall increase or
decrease the consideration offered to holders of Shares or the percentage of
Shares being sought, such increase or decrease shall be applicable to all
holders whose Shares are accepted for exchange pursuant to the Offer, and, if
at the time notice of any such increase or decrease is first published, sent
or given to holders of Shares, the Offer is scheduled to expire at any time
earlier than the tenth business day from and including the date that such
notice is first so published, sent or given, the Offer will be extended until
the expiration of such ten business-day period. For purposes of the Offer, a
"business day" means any day other than a Saturday, Sunday or federal holiday
and consists of the time period from 12:01 A.M. through 12:00 Midnight, New
York City time.     
          
EXCHANGE OF SHARES; DELIVERY OF AHMANSON COMMON STOCK     
   
  Upon the terms and subject to the conditions of the Offer (including, if the
Offer is extended or amended, the terms and conditions of any such extension
or amendment), Ahmanson will accept for exchange, and will exchange, Shares
validly tendered and not withdrawn as promptly as practicable after the
Expiration Date. In addition, subject to applicable rules of the Commission,
Ahmanson expressly reserves the right to delay acceptance for exchange or the
exchange of Shares in order to comply with any applicable law. In all cases,
exchange of Shares tendered and accepted for exchange pursuant to the Offer
will be made only after timely receipt by the Exchange Agent of certificates
for such Shares (or a confirmation of a book-entry transfer of such Shares in
the Exchange Agent's account at The Depository Trust Company, the Midwest
Securities Trust Company, or the Philadelphia Depository Trust Company (each,
a "Book-Entry Transfer Facility" and collectively, the "Book-Entry Transfer
Facilities")), a properly completed and duly executed Letter of Transmittal
(or a manually executed facsimile thereof) and any other required documents.
       
  For purposes of the Offer, Ahmanson will be deemed to have accepted for
exchange Shares validly tendered and not withdrawn as, if and when Ahmanson
gives oral or written notice to the Exchange Agent of its acceptance of the
tenders of such Shares pursuant to the Offer. Delivery of Ahmanson Common
Stock in exchange for Shares pursuant to the Offer and cash in lieu of
fractional shares of Ahmanson Common Stock will be made by the Exchange Agent
as soon as practicable after receipt of such notice. The Exchange Agent will
act as agent for tendering stockholders for the purpose of receiving Ahmanson
Common Stock and cash to be paid in lieu of fractional shares of Ahmanson
Common Stock from Ahmanson and transmitting such Ahmanson Common Stock and
cash to tendering stockholders. Under no circumstances will interest with
respect to fractional shares be paid by Ahmanson by reason of any delay in
making such exchange.     
   
  If any tendered Shares are not accepted for exchange pursuant to the terms
and conditions of the Offer for any reason, or if certificates are submitted
for more Shares than are tendered, certificates for such unexchanged Shares
will be returned without expense to the tendering shareholder or, in the case
of Shares tendered by book-entry transfer of such Shares into the Exchange
Agent's account at a Book-Entry Transfer Facility pursuant to the procedures
set forth below under "--Procedure for Tendering Shares", such Shares will be
credited to an account maintained within such Book-Entry Transfer Facility, as
soon as practicable following expiration or termination of the Offer.     
   
CASH IN LIEU OF FRACTIONAL SHARES OF AHMANSON COMMON STOCK     
   
  No certificates representing fractional shares of Ahmanson Common Stock will
be issued pursuant to the Offer. In lieu thereof, each tendering stockholder
who would otherwise be entitled to a fractional share of Ahmanson Common Stock
will receive cash in an amount (rounded to the nearest $0.01) equal to such
fraction (expressed as a decimal and rounded to the nearest 0.01 of a share)
multiplied by the closing price for shares of Ahmanson Common Stock on the
NYSE on the NYSE trading day immediately preceding the date such stockholder's
Shares are accepted for exchange by Ahmanson.     
 
 
                                      48
<PAGE>
 
   
WITHDRAWAL RIGHTS     
   
  Tenders of Shares made pursuant to the Offer are irrevocable, except that
Shares tendered pursuant to the Offer may be withdrawn at any time prior to
the Expiration Date, and, unless theretofore accepted for exchange by Ahmanson
pursuant to the Offer, may also be withdrawn at any time after [      ], 1997.
       
  For withdrawal to be effective, a written, telegraphic, telex or facsimile
transmission notice of withdrawal must be timely received by the Exchange
Agent at one of its addresses set forth on the back cover of this
       
Prospectus and must specify the name of the person having tendered the Shares
to be withdrawn, the number of Shares to be withdrawn and the name of the
registered holder, if different from that of the person who tendered such
Shares.     
   
  The signature(s) on the notice of withdrawal must be guaranteed by a
financial institution (including most banks, savings and loan associations and
brokerage houses) which is a participant in the Securities Transfer Agents
Medallion Program, the New York Stock Exchange Medallion Signature Program or
the Stock Exchange Medallion Program (an "Eligible Institution") unless such
Shares have been tendered for the account of any Eligible Institution. If
Shares have been tendered pursuant to the procedures for book-entry tender as
set forth below under "--Procedure for Tendering Shares," any notice of
withdrawal must specify the name and number of the account at the Book-Entry
Transfer Facility to be credited with the withdrawn Shares and must otherwise
comply with such Book-Entry Transfer Facility's procedures. If certificates
have been delivered or otherwise identified to the Exchange Agent, the name of
the registered holder and the serial numbers of the particular certificates
evidencing the Shares withdrawn must also be furnished to the Exchange Agent
as aforesaid prior to the physical release of such certificates. All questions
as to the form and validity (including time of receipt) of any notice of
withdrawal will be determined by Ahmanson, in its sole discretion, which
determination shall be final and binding. None of Ahmanson, the Exchange
Agent, the Information Agent, the Dealer Managers nor any other person will be
under any duty to give notification of any defects or irregularities in any
notice of withdrawal or will incur any liability for failure to give any such
notification. Any Shares properly withdrawn will be deemed not to have been
validly tendered for purposes of the Offer. However, withdrawn Shares may be
retendered by following one of the procedures described under "--Procedure for
Tendering Shares" at any time prior to the Expiration Date.     
   
  A withdrawal of Shares shall also constitute a withdrawal of the associated
Rights. Rights may not be withdrawn unless the associated Shares are also
withdrawn.     
   
PROCEDURE FOR TENDERING SHARES     
   
  For a stockholder validly to tender Shares pursuant to the Offer, (i) a
properly completed and duly executed Letter of Transmittal (or a manually
executed facsimile thereof), together with any required signature guarantees,
or an Agent's Message (as defined below) in connection with a book-entry
transfer, and any other required documents, must be transmitted to and
received by the Exchange Agent at one of its addresses set forth on the back
cover of this Prospectus and certificates for tendered Shares must be received
by the Exchange Agent at such address or such Shares must be tendered pursuant
to the procedures for book-entry tender set forth below (and a confirmation of
receipt of such tender received (such confirmation, a "Book-Entry
Confirmation")), in each case prior to the Expiration Date, or (ii) such
stockholder must comply with the guaranteed delivery procedure set forth
below.     
   
  The term "Agent's Message" means a message, transmitted by a Book-Entry
Transfer Facility to, and received by, the Exchange Agent and forming a part
of a Book-Entry Confirmation, which states that such Book-Entry Transfer
Facility has received an express acknowledgment from the participant in such
Book-Entry Transfer Facility tendering the Shares and, if applicable, Rights
which are the subject of such Book-Entry Confirmation, that such participant
has received and agrees to be bound by the terms of the Letter of Transmittal
and that Ahmanson may enforce such agreement against such participant.     
 
 
                                      49
<PAGE>
 
   
  Stockholders will be required to tender one Right for each Share tendered in
order to effect a valid tender of Shares, unless the Rights Plan and DGCL 203
Condition (insofar as it relates to the Rights) has been satisfied or waived.
Unless the GWF Distribution Date (as defined below under "--Rights Plan and
DGCL 203 Condition") occurs, a tender of Shares will constitute a tender of
the associated Rights. If the GWF Distribution Date occurs and separate
certificates representing the Right are distributed by GWF or the Rights Agent
to holders of Shares prior to the time a holder's Shares are tendered pursuant
to the Offer, certificates representing a number of Rights equal to the number
of Shares tendered must be delivered to the Exchange Agent, or, if available,
a Book-Entry Confirmation received by the Exchange Agent with respect thereto,
in order for such Shares to be validly tendered. If the GWF Distribution Date
occurs and separate certificates representing the Rights are not distributed
prior to the time Shares are tendered pursuant to the Offer, Rights may be
tendered prior to a stockholder receiving the certificates for Rights by use
of the guaranteed delivery procedure described below. If Rights certificates
are distributed but are not available to a stockholder prior to the time
Shares are tendered pursuant to the Offer, a tender of Shares constitutes an
agreement by the tendering stockholder to deliver to the Exchange Agent
pursuant to the guaranteed delivery procedure described below, prior to the
expiration of the period to be specified in the Notice of Guaranteed Delivery
and the related Letter of Transmittal for delivery of Rights certificates or a
Book-Entry Confirmation for Rights (the "Rights Delivery Period"), Rights
certificates representing a number of Rights equal to the number of Shares
tendered. Ahmanson reserves the right to require that it receive such Rights
certificates (or a Book-Entry Confirmation with respect to such Rights) prior
to accepting Shares for exchange.     
   
  Nevertheless, Ahmanson will be entitled to accept for exchange Shares
tendered by a stockholder prior to receipt of the Rights certificates required
to be tendered with such Shares or a Book-Entry Confirmation with respect to
such Rights and either (i) subject to complying with applicable rules and
regulations of the Commission, withhold payment for such Shares pending
receipt of the Rights certificates or a Book-Entry confirmation for such
Rights or (ii) exchange Shares accepted for exchange pending receipt of the
Rights certificates or a Book-Entry Confirmation for such Rights in reliance
upon the guaranteed delivery procedure described below. In addition, after
expiration of the Rights Delivery Period Ahmanson may instead elect to reject
as invalid a tender of Shares with respect to which Rights certificates or a
Book-Entry confirmation for an equal number of Rights have not been received
by the Exchange Agent. Any determination by Ahmanson to make payment for
Shares in reliance upon such guaranteed delivery procedure or, after
expiration of the Rights Delivery Period, to reject a tender as invalid, shall
be made, subject to applicable law, in the sole and absolute discretion of
Ahmanson.     
          
  The Exchange Agent will establish accounts with respect to the Shares at the
Book-Entry Transfer Facilities for purposes of the Offer within two business
days after the date of this Prospectus, and any financial institution that is
a participant in either of the Book-Entry Transfer Facilities' systems may
make book-entry delivery of the Shares by causing such Book-Entry Transfer
Facility to transfer such Shares into the Exchange Agent's account in
accordance with such Book-Entry Transfer Facility's procedure for such
transfer. However, although delivery of Shares may be effected through book-
entry at the Book-Entry Transfer Facilities, the Letter of Transmittal (or
       
a manually executed facsimile thereof), with any required signature
guarantees, or an Agent's Message in connection with a book-entry transfer,
and any other required documents, must, in any case, be transmitted to and
received by the Exchange Agent at one of its addresses set forth on the back
cover of this Prospectus prior to the Expiration Date, or the guaranteed
delivery procedure described below must be complied with.     
   
  Signatures on all Letters of Transmittal must be guaranteed by an Eligible
Institution, except in cases in which Shares are tendered (i) by a registered
holder of Shares who has completed neither the box entitled "Special Payment
Instructions" nor the box entitled "Special Delivery Instructions" on the
Letter of Transmittal or (ii) for the account of an Eligible Institution. If
the certificates for Shares [or Rights, (if any)] are registered in the name
of a person other than the signer of the Letter of Transmittal, or if
certificates for unexchanged Shares are to be issued to a person other than
the registered holder(s), the certificates must be endorsed or accompanied by
appropriate stock powers, in either case signed exactly as the name or names
of the     
 
                                      50
<PAGE>
 
   
registered owner or owners appear on the certificates, with the signature(s)
on the certificates or stock powers guaranteed as aforesaid.     
   
  THE METHOD OF DELIVERY OF SHARE CERTIFICATES AND ALL OTHER REQUIRED
DOCUMENTS, INCLUDING DELIVERY THROUGH ANY BOOK-ENTRY TRANSFER FACILITY, IS AT
THE OPTION AND RISK OF THE TENDERING STOCKHOLDER, AND THE DELIVERY WILL BE
DEEMED MADE ONLY WHEN ACTUALLY RECEIVED BY THE EXCHANGE AGENT. IF DELIVERY IS
BY MAIL, REGISTERED MAIL WITH RETURN RECEIPT REQUESTED, PROPERLY INSURED, IS
RECOMMENDED. IN ALL CASES, SUFFICIENT TIME SHOULD BE ALLOWED TO ENSURE TIMELY
DELIVERY.     
   
  TO PREVENT BACKUP U.S. FEDERAL INCOME TAX WITHHOLDING WITH RESPECT TO CASH
RECEIVED IN LIEU OF FRACTIONAL SHARES OF AHMANSON COMMON STOCK, A STOCKHOLDER
MUST PROVIDE THE EXCHANGE AGENT WITH SUCH STOCKHOLDER'S CORRECT TAXPAYER
IDENTIFICATION NUMBER AND CERTIFY WHETHER SUCH STOCKHOLDER IS SUBJECT TO
BACKUP WITHHOLDING OF U.S. FEDERAL INCOME TAX BY COMPLETING THE SUBSTITUTE
FORM W-9 INCLUDED IN THE LETTER OF TRANSMITTAL. CERTAIN SHAREHOLDERS
(INCLUDING, AMONG OTHERS, ALL CORPORATIONS AND CERTAIN FOREIGN INDIVIDUALS)
ARE NOT SUBJECT TO THESE BACKUP WITHHOLDING AND REPORTING REQUIREMENTS. IN
ORDER FOR A FOREIGN INDIVIDUAL TO QUALIFY AS AN EXEMPT RECIPIENT, THE
SHAREHOLDER MUST SUBMIT A FORM W-8, SIGNED UNDER PENALTIES OF PERJURY,
ATTESTING TO THAT INDIVIDUAL'S EXEMPT STATUS.     
   
  If a stockholder desires to tender Shares pursuant to the Offer and such
stockholder's certificates are not immediately available or such stockholder
cannot deliver the certificates and all other required documents to the
Exchange Agent prior to the Expiration Date or such stockholder cannot
complete the procedure for book-entry transfer on a timely basis, such Shares
may nevertheless be tendered, provided that all of the following conditions
are satisfied:     
     
    (a) such tenders are made by or through an Eligible Institution;     
     
    (b) a properly completed and duly executed Notice of Guaranteed Delivery,
  substantially in the form made available by Ahmanson, is received by the
  Exchange Agent as provided below on or prior to the Expiration Date; and
         
    (c) the certificates for all tendered Shares (or a confirmation of a
  book-entry transfer of such Shares into the Exchange Agent's account at a
  Book-Entry Transfer Facility as described above), in proper form for
  transfer, together with a properly completed and duly executed Letter of
  Transmittal (or a manually executed facsimile thereof), with any required
  signature guarantees (or, in the case of a book-entry transfer, an Agent's
  Message) and all other documents required by the Letter of Transmittal are
  received by the Exchange Agent within three business days after the date of
  execution of such Notice of Guaranteed Delivery.     
   
  The Notice of Guaranteed Delivery may be delivered by hand or transmitted by
telegram, telex, facsimile transmission or mail to the Exchange Agent and must
include a guarantee by an Eligible Institution in the form set forth in such
Notice.     
   
  In all cases, exchanges of Shares tendered and accepted for exchange
pursuant to the Offer will be made only after timely receipt by the Exchange
Agent of certificates for Shares (or timely confirmation of a book-entry
transfer of such Shares into the Exchange Agent's account at a Book-Entry
Transfer Facility as described above), properly completed and duly executed
Letter(s) of Transmittal (or manually executed facsimile(s) thereof), or an
Agent's Message in connection with a book-entry transfer, and any other
required documents. Accordingly, tendering stockholders may receive shares of
the Ahmanson Common Stock at different times depending upon when certificates
for Shares or confirmations of book-entry transfers of such Shares are
actually received by the Exchange Agent.     
 
                                      51
<PAGE>
 
   
  By executing a Letter of Transmittal as set forth above, the tendering
stockholder irrevocably appoints designees of Ahmanson as such stockholder's
attorneys-in-fact and proxies, each with full power of substitution, to the
full extent of such stockholder's rights with respect to the Shares tendered
by such stockholder and accepted for exchange by Ahmanson and with respect to
any and all other Shares and other securities issued or issuable in respect of
the Shares on or after [      ], 1997. Such appointment is effective, and
voting rights will be affected, when and only to the extent that Ahmanson
deposits the shares of Ahmanson Common Stock for Shares tendered by such
stockholder with the Exchange Agent. All such proxies shall be considered
coupled with an interest in the tendered Shares and therefore shall not be
revocable. Upon the effectiveness of such appointment, all prior proxies given
by such stockholder will be revoked, and no subsequent proxies may be given
(and, if given, will not be deemed effective), Ahmanson's designees will, with
respect to the Shares for which the appointment is effective, be empowered,
among other things, to exercise all voting and other rights of such
stockholder as they, in their sole discretion, deem proper at any annual,
special or adjourned meeting of GWF's stockholders, by written consent in lieu
of any such meeting or otherwise. Ahmanson reserves the right to require that,
in order for Shares to be deemed validly tendered, immediately upon Ahmanson's
exchange of such Shares, Ahmanson must be able to exercise full voting rights
with respect to such Shares.     
   
  All questions as to the validity, form, eligibility (including time of
receipt) and acceptance for exchange of any tender of Shares will be
determined by Ahmanson, in its sole discretion, which determination shall be
final and binding. Ahmanson reserves the absolute right to reject any and all
tenders of Shares determined by it not to be in proper form or the acceptance
of or exchange for which may, in the opinion of Ahmanson's counsel, be
unlawful. Ahmanson also reserves the absolute right to waive any of the
conditions of the Offer, other than the Ahmanson Stockholder Approval
Condition, the Regulatory Approvals Condition, or any defect or irregularity
in the tender of any Shares. No tender of Shares will be deemed to have been
validly made until all defects and irregularities in tenders of Shares have
been cured or waived. None of Ahmanson, the Exchange Agent, the Information
Agent, the Dealer Managers nor any other person will be under any duty to give
notification of any defects or irregularities in the tender of any Shares or
will incur any liability for failure to give any such notification. Ahmanson's
interpretation of the terms and conditions of the Offer (including the Letter
of Transmittal and instructions thereto) will be final and binding.     
   
  The tender of Shares and Rights (if any) pursuant to any of the procedures
described above will constitute a binding agreement between the tendering
shareholder and Ahmanson upon the terms and subject to the conditions of the
Offer.     
   
CERTAIN FEDERAL INCOME TAX CONSEQUENCES     
   
  In the opinion of Sullivan & Cromwell, special counsel to Ahmanson,
exchanges of Shares for Ahmanson Common Stock pursuant to the Offer and the
Merger, or of GWF 8.30% Cumulative Preferred Stock, liquidation preference
$250 per share ("GWF 8.30% Preferred Stock") (or depository shares
representing the GWF 8.30% Preferred Stock (the "GWF Depository Shares")) for
shares of Ahmanson 8.30% Cumulative Preferred Stock, liquidation preference
$250 per Share ("New Ahmanson 8.30% Preferred Stock") (or depository shares
representing New Ahmanson 8.30% Preferred Stock ("New Ahmanson Depository
Shares")) pursuant to the Merger, will be treated for federal income tax
purposes as exchanges pursuant to a plan of reorganization within the meaning
of the Code. Consequently, no gain or loss will be recognized by holders of
Shares upon such exchanges, except as described below under "Tax Consequences
to Holders of Shares if the Offer and the Merger Qualify as a Reorganization".
This opinion is based on Sullivan & Cromwell's view that the Offer and the
Merger should be treated as a single transaction and on certain assumptions,
including that (a) the continuity of shareholder interest requirement
applicable to corporate reorganizations (which requires a continuing equity
interest in Ahmanson by holders owning a significant percentage of the stock
of GWF prior to the consummation of the Offer) will be satisfied, taking into
account any holders that exercise dissenters' rights, if any, (b) Ahmanson
will continue GWF's historic business or will use a significant portion of
GWF's historic business assets in a business and (c) the Offer and the Merger
will generally be consummated as contemplated by this Prospectus. Although
there are currently no binding agreements that would ensure that the
stockholders of GWF will have a continuing equity interest in Ahmanson
following the consummation of the Combination, Ahmanson     
 
                                      52
<PAGE>
 
   
believes that it is likely that the stockholders of GWF will retain a
sufficient amount of the stock of Ahmanson to satisfy the continuity of
interest requirements.     
   
  In rendering their opinion, Sullivan & Cromwell have further assumed that
(a) upon consummation of the Offer, there will be no significant contingencies
preventing the prompt consummation of the Merger, (b) upon consummation of the
Offer, Ahmanson will not have waived any of the conditions relating to its
obligation to consummate the Offer in a manner that could prevent a prompt
consummation of the Merger, (c) the Merger will in fact be consummated
promptly after the consummation of the Offer and in no event more than one
year after the consummation of the Offer and (d) either GWF will have, at the
time the Offer is consummated, entered into an agreement with Ahmanson
requiring Ahmanson to effect the Merger or the "binding commitment" test
discussed below will not apply to the Offer and the Merger. A significant
delay in the consummation of the Merger would substantially increase the risk
that the Offer will not qualify as part of a reorganization within the meaning
of Section 368(a)(1)(A) of the Code and the absence of the Merger would mean
that the Offer was not part of a reorganization. The consequences of a failure
to so qualify are discussed below under "Tax Consequences to Holders of Shares
if the Offer Does Not Qualify as Part of a Reorganization".     
   
  In deciding whether two steps are part of a single transaction qualifying as
a reorganization, some courts have applied the so-called "binding commitment"
test. Under that test, two steps will be integrated only if, at the time that
the first step is consummated, there is a binding commitment to consummate the
second step. If the "binding commitment" test were applied to the Offer and
the Merger and GWF has not at the time the Offer is consummated entered into
an agreement with Ahmanson requiring Ahmanson to effect the Merger, the Offer
and the Merger would not be treated as a single transaction, and the Offer
would not qualify as part of a reorganization. Although the matter is not free
from doubt, in the opinion of Sullivan & Cromwell, the "binding commitment"
test should not be applied to determine whether the Offer and the Merger
should be treated as a single transaction.     
   
  Assuming that the Merger qualifies as a reorganization under the Code, no
gain or loss will be recognized by Ahmanson or GWF as a result of the Offer
and the Merger.     
   
  This summary does not address any tax consequences of the Offer or the
Merger to U.S. Holders who exercise dissenters' rights, if any. It may not
apply to certain classes of taxpayers, including, without limitation,
insurance companies, tax-exempt organizations, financial institutions, dealers
in securities, foreign persons, persons who acquired Shares pursuant to an
exercise of employee stock options or rights or otherwise as compensation and
persons who hold Shares as part of a straddle or conversion transaction. Also,
the summary does not address state, local or foreign tax consequences of the
Offer or the Merger. Consequently, each holder should consult such holder's
own tax advisor as to the specific tax consequences of the Offer and the
Merger to such holder.     
   
  This summary is based on current law and the opinion of Sullivan & Cromwell.
Future legislative, judicial or administrative changes or interpretations,
which may be retroactive, could alter or modify the statements set forth
herein. The opinion of Sullivan & Cromwell set forth in this summary is based,
among other things, on the assumptions set forth above, which assumptions have
been made with the consent of Ahmanson. Ahmanson will not request any ruling
from the Internal Revenue Service as to the United States federal income tax
consequences of the Offer and the Merger. An opinion of counsel is not binding
on the Internal Revenue Service, and the Internal Revenue Service is not
precluded from taking contrary positions.     
   
 Tax Consequences to Holders of Shares if the Offer and the Merger Qualify as
a Reorganization     
   
  If the Offer and the Merger together qualify as a reorganization within the
meaning of Section 368(a)(1)(A) of the Code, the material federal income tax
consequences to holders who are (a) citizens or residents of the United
States, (b) domestic corporations or (c) otherwise subject to United States
federal income tax on a net income basis in respect of the Shares ("U.S.
Holders") who hold Shares as capital assets and who exchange such Shares
pursuant to the Offer or the Merger, or both, will be as follows:     
 
                                      53
<PAGE>
 
     
    (i) no gain or loss will be recognized by a U.S. Holder on the exchange
  of Shares for Ahmanson Common Stock, except as described below with respect
  to the receipt of cash in lieu of fractional shares of Ahmanson Common
  Stock;     
     
    (ii) the aggregate adjusted tax basis of shares of Ahmanson Common Stock
  received by a U.S. Holder (including fractional shares of Ahmanson Common
  Stock deemed received and redeemed as described below) will be the same as
  the aggregate adjusted tax basis of the Shares exchanged therefor;     
     
    (iii) the holding period of shares of Ahmanson Common Stock (including
  the holding period of fractional shares of Ahmanson Common Stock) received
  by a U.S. Holder will include the holding period of the Shares exchanged
  therefor; and     
     
    (iv) a U.S. Holder of Shares who receives cash in lieu of fractional
  shares of Ahmanson Common Stock will be treated as having received such
  fractional shares and then as having received such cash in redemption of
  such fractional shares. Under Section 302 of the Code, provided that such
  deemed distribution is "substantially disproportionate" with respect to
  such U.S. Holder or is "not essentially equivalent to a dividend" after
  giving effect to the constructive ownership rules of the Code, the U.S.
  Holder will generally recognize capital gain or loss equal to the
  difference between the amount of cash received and the U.S. Holder's
  adjusted tax basis in the fractional share interest in Ahmanson Common
  Stock. Such capital gain or loss will be long-term capital gain or loss if
  the U.S. Holder's holding period in the fractional shares is more than one
  year.     
          
 Tax Consequences to Holders of Shares if the Offer Does Not Qualify as Part
of a Reorganization     
   
  If the Merger is not consummated, or if the Merger is consummated but the
Offer is treated as a separate transaction for federal income tax purposes,
exchanges pursuant to the Offer will be taxable transactions for federal
income tax purposes. In that case, each U.S. Holder exchanging Shares for
shares of Ahmanson Common Stock pursuant to the Offer will recognize gain or
loss for federal income tax purposes measured by the difference between such
U.S. Holder's adjusted basis in the Shares exchanged and the sum of the fair
market value of Ahmanson Common Stock received by such U.S. Holder pursuant to
the Offer and any cash received by such U.S. Holder in lieu of fractional
shares of Ahmanson Common Stock. Such gain or loss will be capital gain or
loss if such Shares had been held for more than one year at the time of
consummation of the exchanges.     
   
  If the Offer is a taxable transaction, the Merger itself would be a
reorganization within the meaning of Section 368(a)(1)(A) of the Code if the
continuity of interest requirement is satisfied in the Merger. For advanced
ruling purposes, guidelines published by the Internal Revenue Service would
require that stockholders of GWF receive in the Merger stock of Ahmanson
having a value equal to at least 50% of the value of all of the stock of GWF
outstanding prior to the Merger. If the Offer is treated as a separate
transaction for federal income tax purposes, however, stock of GWF held by
Ahmanson prior to the Merger as a result of the Offer should count towards
establishing that the Merger satisfies the continuity of interest requirement.
If the continuity of interest requirement is satisfied in the Merger, a U.S.
Holder receiving Ahmanson Common Stock in the Merger would be subject to the
rules concerning reorganizations described above with respect to such Ahmanson
Common Stock, but not with respect to any Ahmanson Common Stock received by
such U.S. Holder pursuant to the Offer.     
   
EFFECT OF OFFER ON MARKET FOR SHARES; REGISTRATION UNDER THE EXCHANGE ACT     
   
  The exchange of Shares pursuant to the Offer will reduce the number of
holders of Shares and the number of Shares that might otherwise trade publicly
and could adversely affect the liquidity and market value of the remaining
Shares held by the public.     
   
  The Shares are listed and principally traded on the NYSE and the PSE.
Depending upon the number of Shares acquired pursuant to the Offer, following
consummation of the Offer the Shares may no longer meet the requirements of
such exchanges for continued listing. For example, published guidelines of the
NYSE indicate that the NYSE would consider delisting the outstanding Shares
if, among other things, (i) the number of publicly     
 
                                      54
<PAGE>
 
   
held Shares (exclusive of holdings of officers, directors and members of their
immediate families and other concentrated holdings of 10 percent or more)
should fall below 600,000, (ii) the number of record holders of 100 or more
Shares should fall below 1,200 or (iii) the aggregate market value of publicly
held Shares should fall below $5 million.     
   
  According to GWF's earnings release for the quarter ended March 31, 1997,
there were, as of March 31, 1997, 137,885,310 Shares outstanding, and, as of
December 31, 1996, 9,724 holders of record of Shares.     
   
  If such exchanges were to delist the Shares, the market therefor could be
adversely affected. It is possible that the Shares would be traded on other
securities exchanges or in the over-the-counter market, and that price
quotations would be reported by such exchanges, or through NASDAQ or by other
sources. The extent of the public market for the Shares and the availability
of such quotations would, however, depend upon the number of holders and/or
the aggregate market value of the Shares remaining at such time, the interest
in maintaining a market in the Shares on the part of securities firms, the
possible termination of registration of Shares under the Exchange Act, as
described below, and other factors.     
   
  The Shares are presently "margin securities" under the regulations of the
Federal Reserve Board, which has the effect, among other things, of allowing
brokers to extend credit on the collateral of such Shares. Depending on
factors similar to those described above with respect to listing and market
quotations, following consummation of the Offer, the Shares may no longer
constitute "margin securities" for the purposes of the Federal Reserve Board's
margin regulations in which event the Shares would be ineligible as collateral
for margin loans made by brokers.     
   
  The Shares are currently registered under the Exchange Act. Such
registration may be terminated by GWF upon application to the Commission if
the outstanding Shares are not listed on a national securities exchange and if
there are fewer than 300 holders of record of Shares. Termination of
registration of the Shares under the Exchange Act would reduce the information
required to be furnished by GWF to its stockholders and to the Commission and
would make certain provisions of the Exchange Act, such as the short-swing
profit recovery provisions of Section 16(b) and the requirement of furnishing
a proxy statement in connection with stockholders' meetings pursuant to
Section 14(a) and the related requirement of furnishing an annual report to
stockholders, no longer applicable with respect to the Shares. Furthermore,
the ability of "affiliates" of GWF and persons holding "restricted securities"
of GWF to dispose of such securities pursuant to Rule 144 under the Securities
Act may be impaired or eliminated. If registration of the Shares under the
Exchange Act were terminated, the Shares would no longer be eligible for
listing on the NYSE or for continued inclusion on the Federal Reserve Board's
list of "margin securities."     
          
  The Rights currently are registered under the Exchange Act and are listed on
the NYSE and the PSE, but currently are attached to the outstanding Shares and
are not separately transferable. The Rights may become transferable apart from
the Shares, unless previously redeemed. If the Rights are not redeemed or
invalidated and Ahmanson waives the Rights Plan and DGCL 203 Condition
(insofar as the Rights are concerned), then the foregoing discussion with
respect to the effect of the Offer on the Shares would be similarly applicable
to the Rights (although the continued listing criteria are different).     
   
PURPOSE OF THE OFFER; THE MERGER     
   
  The purpose of the Offer is to enable Ahmanson to acquire control of, and
the entire common equity interest in, GWF. The Offer, as the first step in the
acquisition of GWF, is intended to facilitate the acquisition of all Shares.
Ahmanson intends, as promptly as practicable after consummation of the Offer,
to seek to have GWF consummate the Merger with Ahmanson. Assuming the Minimum
Tender Condition and the Rights Plan and DGCL 203 Condition are satisfied and
Ahmanson consummates the Offer and enters into a merger agreement with GWF for
the Merger, Ahmanson would have sufficient voting power to effect the Merger
without the vote of any other stockholder of GWF.     
 
 
                                      55
<PAGE>
 
   
  The purpose of the Merger is to acquire all Shares not tendered and
exchanged pursuant to the Offer or otherwise. In the Merger, (a) each then
outstanding Share (except for treasury shares of GWF and Shares owned by
Ahmanson or any subsidiary of Ahmanson other than in a fiduciary capacity)
would be converted into the right to receive a number of shares of Ahmanson
Common Stock equal to the Exchange Ratio (with cash in lieu of fractional
shares of Ahmanson Common Stock) and (b) each then outstanding share of GWF
8.30% Preferred Stock (if any) would be converted into a substantially
identical share of New Ahmanson 8.30% Preferred Stock.     
   
  Holders of Shares do not have appraisal rights as a result of the Offer and,
assuming the Shares remain listed on a national securities exchange or NASDAQ
or a similar market, will not have appraisal rights as a result of the Merger.
However, in the event the Merger is consummated, and if, on the date fixed to
determine stockholders entitled to vote on the Merger, the Shares are no
longer listed on a national securities exchange or designated as a national
market system security on an interdealer quotation system by the National
Association of Securities Dealers, Inc. or held of record by more than 2,000
holders, holders of Shares will have certain rights pursuant to the provisions
of Section 262 of the DGCL to dissent and to demand appraisal of their Shares.
Under Section 262, dissenting stockholders who comply with the applicable
statutory procedures will be entitled to receive a judicial determination of
the fair value of their Shares (exclusive of any element of value arising from
the accomplishment or expectation of the Merger) and to receive payment of
such fair value in cash, together with a fair rate of interest, if any. Any
such judicial determination of the fair value of Shares could be based upon
factors other than, or in addition to, the price per Share to be paid in the
Merger or the market value of the Shares. The value so determined could be
more or less than the price per Share to be paid in the Merger.     
   
  Rule 13e-3 of the General Rules and Regulations under the Exchange Act,
which Ahmanson does not believe would be applicable to the Merger if the
Merger occurred within one year of consummation of the Offer, would require,
among other things, that certain financial information concerning GWF, and
certain information relating to the fairness of the proposed transaction and
the consideration offered to stockholders of GWF therein, be filed with the
Commission and disclosed to stockholders of GWF prior to consummation of the
Merger.     
   
  In addition, Ahmanson reserves the right to acquire, following the
consummation or termination of the Offer, additional Shares through open
market purchases, privately negotiated transactions, a tender offer or
exchange offer, or otherwise, upon such terms and at such prices as it shall
determine, which may be more or less favorable than those of the Offer.
Ahmanson and its affiliates also reserve the right to dispose of any or all
Shares acquired by them pursuant to the Offer or otherwise, upon such terms
and at such prices as they shall determine.     
          
  Except as noted herein, Ahmanson does not have any present plans or
proposals that would result in an extraordinary corporate transaction, such as
a merger, reorganization or liquidation, or sale or transfer of a material
amount of assets, involving GWF or any of its subsidiaries, or any material
changes in GWF's corporate structure or business or any change in its
management. However, because Ahmanson has not had access to GWF's books and
records, additional changes may be made after a full review of GWF's
operations is completed.     
   
MINIMUM TENDER CONDITION     
   
  The Offer is conditioned upon, among other things, there being validly
tendered and not withdrawn prior to the Expiration Date a number of Shares
which, together with the Shares beneficially owned by Ahmanson and its
affiliates for their own respective accounts, will constitute at least a
majority of the total number of outstanding Shares on a fully diluted basis
(as though all options or other securities convertible into or exercisable or
exchangeable for Shares, other than the Rights had been so converted,
exercised or exchanged) as of the date the Shares are accepted by Ahmanson
pursuant to the Offer. According to GWF's earnings release for the quarter
ended March 31, 1997, there were 137,885,310 Shares outstanding as of March
31, 1997 and, according to the 1996 GWF 10-K, there were 14,673,297 Shares
reserved for issuance pursuant to employee stock options and GWF's dividend
reinvestment plan as of December 31, 1996 (the "Options"). Based on the
foregoing, Ahmanson believes that the Minimum Tender Condition would have been
satisfied on March 31, 1997     
 
                                      56
<PAGE>
 
   
if, in addition to the 3,560,500 Shares currently owned beneficially by
Ahmanson and its affiliates for their own respective accounts, at least an
aggregate of 72,718,804 Shares, or 53% of the Shares outstanding as of March
31, 1997, had been validly tendered pursuant to the Offer and not withdrawn.
Ahmanson reserves the right (but shall not be obligated), subject to the rules
and regulations of the Commission, to waive or amend the Minimum Tender
Condition and to purchase fewer than such number of Shares as would satisfy
the Minimum Tender Condition pursuant to the Offer.     
   
AHMANSON STOCKHOLDER APPROVAL CONDITION     
   
  The Offer is conditioned, among other things, upon the satisfaction of the
Ahmanson Stockholder Approval Condition. Approval of the Ahmanson Charter
Amendment is required in order for Ahmanson to have a sufficient number of
authorized shares of Ahmanson Common Stock to issue in connection with the
Offer and the Merger. Pursuant to the rules of the NYSE (on which the Ahmanson
Common Stock is listed), the issuance of Ahmanson Common Stock pursuant to the
Combination must be approved by the holders of a majority of the shares of
Ahmanson Common Stock voted at a meeting of such holders at which the total
number of votes cast represents over 50% in interest of all shares of Ahmanson
Common Stock outstanding on the applicable record date if the number of shares
of Ahmanson Common Stock to be issued will be equal to or in excess of 20% of
the shares outstanding prior to such issuance. Ahmanson intends to seek such
approval at the Ahmanson Meeting, which it has called for        , 1997.     
   
RIGHTS PLAN AND DGCL 203 CONDITION     
   
  Insofar as the Rights Plan and DGCL 203 Condition relates to the Rights,
this condition may be satisfied in a number of ways, including the following:
(i) the GWF Board may determine that the Offer is a Qualifying Offer (as
defined below) or may redeem or amend the Rights so they would not be
triggered by the Offer and the Merger or (ii) Ahmanson could be successful in
its litigation seeking, among other things, invalidation of the Rights or an
injunction requiring the GWF Board to redeem the Rights or prohibiting any
application of the GWF Rights Plan with respect to the Offer. See "Background
of the Offer--Litigation".     
   
  Insofar as the Rights Plan and DGCL 203 Condition relates to Section 203 of
the DGCL, this condition may be satisfied in a number of ways, including the
following: (i) the GWF Board may approve the Offer for purposes of Section
203, (ii) 85% of the outstanding Shares (excluding those held by directors who
are officers of GWF and certain employee stock plans of GWF) could be tendered
and accepted in the Offer, or (iii) Ahmanson could be successful in its
litigation seeking, among other things, a declaratory judgment that the
exemption afforded by Section 203(b)(6) of the DGCL is applicable to the Offer
or, alternatively, an injunction requiring the GWF Board to approve the Offer
for purposes of Section 203. (Since the Offer was announced after GWF approved
the GWF/WAMU Merger Agreement, Ahmanson believes that such exemption is
applicable to the Offer and Merger.) See "--GFW Rights Plan", "Background of
the Offer--Litigation" and Section 203, a copy of which is attached hereto as
Schedule A.     
   
  Set forth below is certain additional information concerning the Rights and
Section 203 of the DGCL.     
   
 GWF Rights Plan     
   
  On June 24, 1986, the GWF Board declared a dividend distribution of one
Right for each Share outstanding on July 14, 1986. On June 27, 1995, the GWF
Board approved a number of amendments to the GWF Rights Plan.     
   
  In the event that any person or group becomes the beneficial owner of 15% or
more of the outstanding Shares other than pursuant to a Qualifying Offer (as
defined below), proper provision shall be made so that each holder of a Right,
other than Rights beneficially owned by the acquiring person, will thereafter
have the right to receive upon exercise that number of Shares having a market
value of two times the exercise price of the Right. In the event that, at any
time following such acquisition of 15% or more of the outstanding Shares, GWF
is     
 
                                      57
<PAGE>
 
   
acquired in a merger or other business combination transaction or 50% or more
of its consolidated assets or earning power are sold (other than such a
transaction resulting from a Qualifying Offer), proper provision will be made
so that each holder of a Right will thereafter have the right to receive, upon
the exercise thereof at the then current exercise price of the Right, that
number of shares of common stock of the acquiring company which at the time of
such transaction will have a market value of two times the exercise price of
the Right. A "Qualifying Offer" is a tender offer or exchange offer for any
and all Shares at a price and on terms determined by at least a majority of
the directors on the Great Western board who are not officers of GWF and are
not affiliated with the acquiring person or group, after receiving advice from
one or more investment banking firms, to be at a price which is fair to GWF
stockholders and otherwise in the best interests of GWF stockholders. The "GWF
Distribution Date" is the date specified in the GWF Rights Plan on which the
acquisition of 15% or more of the outstanding Shares or the announcement of a
tender or exchange offer that would result in such an acquisition occurs and
thereby triggers the distribution to GWF stockholders of rights certificates
evidencing the Rights.     
   
 DGCL Section 203     
   
  Section 203 of the DGCL, in general, prohibits a Delaware corporation such
as GWF from engaging in a Business Combination (as defined in Section 203)
with an Interested Stockholder (as defined in Section 203) for a period of
three years following the date that such person became an Interested
Stockholder unless (a) prior to the date that such person became an Interested
Stockholder, the board of directors of the corporation approved either the
Business Combination or the transaction that resulted in the stockholder
becoming an Interested Stockholder, (b) upon consummation of the transaction
that resulted in the stockholder becoming an Interested Stockholder, the
Interested Stockholder owned at least 85% of the voting stock of the
corporation outstanding at the time the transaction commenced, excluding stock
held by directors who are also officers of the corporation and employee stock
plans that do not provide employees with the right to determine confidentially
whether shares held subject to the plan will be tendered in a tender or
exchange offer, (c) the business combination is proposed prior to the
consummation or abandonment of and subsequent to the public announcement of a
proposed transaction which (i) constitutes a merger or consolidation of the
corporation, (ii) is with or by a person who either was not an interested
stockholder during the previous 3 years or who became an interested
stockholder with the approval of the corporation's board of directors and
(iii) is approved or not opposed by a majority of the board of directors then
in office who were directors prior to any person becoming an Interested
Stockholder during the previous three years, or (d) on or subsequent to the
date such person became an Interested Stockholder, the Business Combination is
approved by the board of directors of the corporation and authorized at a
meeting of stockholders, and not by written consent, by the affirmative vote
of the holders of at least 66 2/3% of the outstanding voting stock of the
corporation not owned by the Interested Stockholder. A copy of Section 203 of
the DGCL has been annexed as Schedule A hereto.     
   
GWF/WAMU MERGER AGREEMENT CONDITION     
   
  The Offer is conditioned upon, among other things, the stockholders of GWF
not having approved the GWF/WAMU Merger Agreement, which requires the approval
of the holders of a majority of the Shares. The GWF/WAMU Merger Agreement
Condition shall not have been satisfied if such approval shall have been
obtained.     
   
REGULATORY APPROVALS CONDITION     
   
  The consummation of the Offer and the Merger each is conditioned on, among
other things, obtaining the Requisite Regulatory Approvals.     
   
  The principal Requisite Regulatory Approval is the approval of the OTS,
under the Home Owners' Loan Act and related OTS regulations, of the
Combination. Ahmanson filed an application for such approval on February 24,
1997. This approval requires consideration by the OTS of various factors,
including assessments of the competitive effect of the contemplated
transaction, the managerial and financial resources and future     
 
                                      58
<PAGE>
 
   
prospects of the resulting institution and the effect of the contemplated
transaction on the convenience and needs of the communities to be served.
These regulatory considerations also include, among other things, an
assessment of compliance with the Community Reinvestment Act of 1977 (the
"CRA"). Home Savings currently has an "outstanding" CRA rating and, on March
20, 1997, Ahmanson announced a $70 billion community reinvestment initiative.
The regulations of the OTS require publication of notice of, and an
opportunity for public comment with respect to, the application filed in
connection with the Combination. The public comment period with respect to the
application expired on April 7, 1997. Ahmanson received comments on its OTS
application on April 17, 1997 and has responded in writing. Ahmanson also
understands that the OTS does not intend to hold any public hearing with
respect to this application.     
   
  The Offer may not be consummated for a period of 15 to 30 days following the
OTS's approval (the precise length of the period to be determined by the OTS
with the concurrence of the Attorney General of the United States), during
which time the United States Department of Justice could challenge the
Proposed Merger on antitrust grounds. The commencement of an antitrust action
would stay the effectiveness of any approval granted by the OTS unless a court
specifically ordered otherwise.     
   
  The Combination may also be subject to approvals of, or notices to, various
state agencies, including state banking regulators, several state insurance
departments and other state agencies such as those that regulate consumer
finance. Because GWF has not to date given Ahmanson access to any information
with respect to the various state licenses held by GWF and its subsidiaries,
Ahmanson is not currently in a position to determine definitively the
approvals, notices and other filings required to consummate the Combination.
However, based on information made publicly available by GWF in connection
with the Proposed GWF/WAMU Merger, Ahmanson believes that the Combination is
or may be subject to the approval of, or filing of notices with, a number of
state agencies, including the following: (1) the Utah Department of Financial
Institutions, in connection with Ahmanson's proposed indirect acquisition of
GWF's subsidiary, Great Western Thrift & Loan, a Utah-chartered, industrial
loan company which accepts deposits that are insured by the FDIC through the
Bank Insurance Fund ("BIF"); (ii) the Colorado Division of Banking, in
connection with Ahmanson's proposed indirect acquisition of GWF's subsidiary,
First Community Industrial Bank, a Colorado-chartered, insurance loan company
which accepts deposits that are insured by the FDIC through the BIF;
(iii) insurance regulators in Utah, South Carolina and Arizona, in connection
with Ahmanson's proposed indirect acquisition of GWF's three subsidiary
insurance companies, which are located in those states; and (iv) various state
authorities that regulate consumer finance, in connection with Ahmanson's
indirect acquisition of Aristar and Aristar's subsidiaries.     
          
  Based upon the advice of Sullivan & Cromwell, its special counsel, as well
as Ahmanson's experience in obtaining approvals for other transactions,
Ahmanson believes that it will be able to obtain the requisite OTS approval on
a timely basis and in a time frame substantially identical to that in which
WAMU would be able to obtain the OTS approval required as a condition to the
Proposed GWF/WAMU Merger and without the imposition of any condition that
would have a material adverse effect on the combined company. As stated above,
the Requisite Regulatory Approvals in addition to OTS approval consist of
approvals or consents of state licensing authorities with respect to the
resultant change in control of GWF's insurance agency, finance company and
mortgage banking subsidiaries under applicable state law. Ahmanson anticipates
no difficulty in obtaining such approvals or consents promptly.     
   
  Of course, the regulatory approval process is such that Ahmanson can give no
definitive assurance that any Requisite Regulatory Approval will be obtained
or, if obtained, will be obtained on a timely basis and without the imposition
of material conditions. Also, there can be no assurance that the
U.S. Department of Justice or the Attorney General of the State of California
will not challenge the Offer and Merger or, if challenged, what the result of
such a challenge would be.     
 
                                      59
<PAGE>
 
   
CERTAIN OTHER CONDITIONS OF THE OFFER     
   
  Notwithstanding any other provision of the Offer, Ahmanson shall not be
required to accept for exchange or exchange any Shares, may postpone the
acceptance for exchange of or exchange for tendered Shares, and may, in its
sole discretion, terminate or amend the Offer as to any Shares not then
exchanged for if at the Expiration Date any of the Minimum Tender Condition,
the Ahmanson Stockholder Approval Condition, the Rights Plan and DGCL 203
Condition, the GWF/WAMU Merger Agreement Condition or the Regulatory Approvals
Condition (in each case as defined on the cover page of this Prospectus) has
not been satisfied or, with respect to the Minimum Tender Condition and the
Rights Plan and DGCL 203 Condition, waived, or if on or after the date of this
Prospectus and at or prior to the time of exchange of any such Shares (whether
or not any Shares have theretofore been accepted for exchange or exchanged
pursuant to the Offer), any of the following events shall not have occurred:
       
    (a) The shares of Ahmanson Common Stock which shall be issued to the
  stockholders of GWF in the Offer and the Merger shall have been authorized
  for listing on the NYSE, subject to official notice of issuance.     
     
    (b) The Registration Statement shall have become effective under the
  Securities Act, and no stop order suspending the effectiveness of the
  Registration Statement shall have been issued and no proceedings for that
  purpose shall have been initiated or threatened by the Commission.     
     
    (c) No order, injunction or decree issued by any court or agency of
  competent jurisdiction or other legal restraint or prohibition preventing
  the consummation of the Offer and/or the Merger or any of the other
  transactions contemplated by this Prospectus shall be in effect. No
  statute, rule, regulation, order, injunction or decree shall have been
  enacted, entered, promulgated or enforced by any court, administrative
  agency or commission or other governmental authority or instrumentality
  which prohibits, restricts or makes illegal the consummation of the Offer
  and/or the Merger.     
     
    (d)(i) The representations and warranties of GWF in the GWF/WAMU Merger
  Agreement with respect to capitalization shall be true and correct in all
  material respects as of the date of this Prospectus and (except to the
  extent such representations and warranties speak as of an earlier date) as
  of the Expiration Date as though made on and as of the Expiration Date and
  (ii) the representations and warranties of GWF set forth in the GWF/WAMU
  Merger Agreement other than that referred to in clause (i) hereof shall be
  true and correct in all respects as of the date of this Prospectus and
  (except to the extent such representations and warranties speak as of an
  earlier date) as of the Expiration Date as though made on and as of the
  Expiration Date; provided, however, that for purposes of determining the
  satisfaction of the condition contained in this clause (ii), no effect
  shall be given to any exception in such representations and warranties
  relating to materiality or a material adverse effect, and provided,
  further, however, that, for purposes of this clause (ii), such
  representations and warranties shall be deemed to be true and correct in
  all respects unless the failure or failures of such representations and
  warranties to be so true and correct, individually or in the aggregate,
  results or would reasonably be expected to result in a material adverse
  effect on GWF and its subsidiaries taken as a whole.     
   
  The foregoing conditions are for the sole benefit of Ahmanson and may be
asserted by Ahmanson regardless of the circumstances giving rise to any such
conditions (including any action or inaction by Ahmanson) or may
    
          
be waived by Ahmanson in whole or in part (other than the Ahmanson Stockholder
Approval Condition and the Regulatory Approvals Condition). Although Ahmanson
reserves the right to do so, Ahmanson does not currently intend to waive the
Minimum Tender Condition or the Rights Plan and DGCL Condition (insofar as it
relates to Section 203 of the DGCL) unless it determines that doing so would
not prevent it from consummating the Merger promptly after consummating the
Offer. Ahmanson also does not currently intend to waive the Rights Plan and
DGCL 203 Condition (insofar as it relates to the Rights) unless it determines
that the dilution to Ahmanson's stockholders that would result from the Rights
becoming exercisable as a consequence of the Offer and the Merger would not be
material in the context of the entire transaction. The determination as to
whether any condition has been satisfied shall be in the sole judgment of
Ahmanson and will be final and binding on all parties. The failure by Ahmanson
at any time to exercise any of the foregoing rights shall not be deemed a
waiver     
 
                                      60
<PAGE>
 
   
of any such right and each such right shall be deemed a continuing right which
may be asserted at any time and from time to time. Notwithstanding the fact
that Ahmanson reserves the right to assert the failure of a condition
following acceptance for payment but prior to payment in order to delay
payment or cancel its obligation to exchange properly tendered Shares,
Ahmanson will either promptly exchange such Shares or promptly return such
Shares.     
   
  The conditions to the Offer set forth herein that are not immediately
satisfiable by GWF are identical in all material respects to the conditions of
WAMU to effect the GWF/WAMU Merger, except that:     
     
    (a) WAMU does not have to effect the GWF/WAMU Merger unless WAMU receives
  a letter from its accountants to the effect that the GWF/WAMU Merger will
  qualify for "pooling of interests" accounting treatment.     
     
    (b) WAMU does not have to effect the GWF/WAMU Merger unless it receives
  an opinion of its counsel to the effect that the GWF/WAMU Merger will be
  treated for Federal income tax purposes as a reorganization within the
  meaning of Section 368(a) of the Code and that accordingly no gain or loss
  will be recognized by WAMU or GWF as a result of the GWF/WAMU Merger and no
  gain or loss will be recognized by the holders of GWF Common Stock who
  exchange their Shares solely for WAMU Common Stock and holders of GWF 8.30%
  Preferred Stock who exchange it solely for new 8.30% preferred stock to be
  issued by WAMU pursuant to the GWF/WAMU Merger.     
     
    (c) WAMU does not have to effect the GWF/WAMU Merger unless GWF has
  performed in all material respects its obligations required to be performed
  by it under the GWF/WAMU Merger Agreement at or prior to the closing of the
  GWF/WAMU Merger, and WAMU shall have received a certificate signed on
  behalf of GWF by the Chief Executive Officer and the Chief Financial
  Officer to such effect.     
     
    (d) Ahmanson does not have to accept for exchange or exchange any Shares
  pursuant to the Offer and can terminate or amend the Offer if the
  stockholders of GWF have approved the GWF/WAMU Merger Agreement.     
     
    (e) Ahmanson does not have to accept for exchange or exchange any Shares
  pursuant to the Offer and can terminate or amend the Offer if the Minimum
  Tender Condition is not met (based on the number of Shares outstanding or
  reserved for issuance pursuant to GWF's employee stock options and dividend
  reinvestment and stock purchase plans as of December 31, 1996 as reported
  by GWF and Shares currently owned by Ahmanson and its affiliates for their
  own respective accounts, Ahmanson believes the Minimum Tender Condition
  would have been satisfied on March 31, 1997 if at least an aggregate of
  72,718,804 Shares, or 53% of the Shares outstanding as of March 31, 1997,
  had been validly tendered pursuant to the Offer and not withdrawn), while
  the GWF/WAMU Merger is conditioned on receiving approval of the holders of
  a majority of the outstanding Shares.     
   
RELATIONSHIPS WITH GWF     
   
  Except as set forth herein, neither Ahmanson nor, to the best of its
knowledge, any of the persons listed in Schedule A hereto has any contract,
arrangement, understanding or relationship with any other person with respect
to any securities of GWF, including, but not limited to, any contract,
arrangement, understanding or relationship concerning the transfer or the
voting of any such securities, joint ventures, loan or option arrangements,
puts or calls, guaranties of loans, guaranties against loss or the giving or
withholding or proxies.
       
Except as described herein, there have been no contacts, negotiations or
transactions since January 1, 1995, between Ahmanson or, to the best of its
knowledge, any of the persons listed in Schedule A hereto, on the one hand,
and GWF or its affiliates, on the other hand, concerning a merger,
consolidation or acquisition, a tender offer or other acquisition of
securities, an election of directors, or a sale or other transfer of a
material amount of assets. Neither Ahmanson, nor, to the best of its
knowledge, any of the persons listed in Schedule A hereto, has since January
1, 1995, had any transaction with GWF or any of its executive officers,
directors or affiliates that would require disclosure under the rules and
regulations of the Commission applicable to the Offer.     
 
 
                                      61
<PAGE>
 
   
FEES AND EXPENSES     
   
  Credit Suisse First Boston Corporation ("CSFB") and Montgomery Securities
("Montgomery") are acting as Dealer Managers in connection with the Offer.
Pursuant to the respective terms of CSFB's and Montgomery's engagement,
Ahmanson has agreed to pay each of CSFB and Montgomery for its financial
advisory services (including services as Dealer Manager) in connection with
the Combination an aggregate financial advisory fee of $9.0 million in the
case of CSFB and $7.0 million in the case of Montgomery payable as follows:
(i) in the case of CSFB, (a) $1.5 million upon its engagement, (b) $1.5
million upon public announcement by Ahmanson of its intention to acquire GWF,
(c) $1.5 million upon execution of a definitive agreement relating to the
Merger, and (d) $4.5 million upon consummation of the Merger, and (ii) in the
case of Montgomery, (a) $0.5 million upon its engagement, (b) $0.5 million
upon public announcement by Ahmanson of its intention to acquire GWF, (c) $1.5
million upon execution of a definitive agreement relating to the Merger, and
(d) $4.5 million upon consummation of the Merger. In addition, Ahmanson has
agreed to reimburse each of CSFB and Montgomery for its reasonable out-of-
pocket expenses, including the fees and expenses of its legal counsel, in
connection with its engagement, and has agreed to indemnify each of CSFB,
Montgomery and certain related persons and entities against certain
liabilities and expenses in connection with its engagement, including
liabilities under the federal securities laws. In the ordinary course of
business, CSFB and Montgomery may actively trade the equity and debt
securities of Ahmanson and GWF for their own accounts and for the accounts of
customers and, accordingly, may at any time hold a long or short position in
such securities.     
   
  Ahmanson has also retained MacKenzie Partners, Inc. to act as Information
Agent in connection with the Offer. The Information Agent may contact holders
of Shares by mail, telephone, telex, telegraph and personal interviews and may
request brokers, dealers and other nominee stockholders to forward the Offer
materials to beneficial owners of Shares. The Information Agent will receive a
fee estimated not to exceed $[    ] for such services, plus reimbursement of
out-of-pocket expenses and Ahmanson will indemnify the Information Agent
against certain liabilities and expenses in connection with the Offer,
including liabilities under federal securities laws.     
   
  Ahmanson will pay the Exchange Agent reasonable and customary compensation
for its services in connection with the Offer, plus reimbursement for out-of-
pocket expenses, and will indemnify the Exchange Agent against certain
liabilities and expenses in connection therewith, including liabilities under
the federal securities laws. Brokers, dealers, commercial banks and trust
companies will be reimbursed by Ahmanson for customary mailing and handling
expenses incurred by them in forwarding material to their customers.     
   
ACCOUNTING TREATMENT     
          
  Upon consummation of the Combination, Ahmanson would account for the
acquisition of GWF using the purchase method of accounting. Accordingly, the
consideration to be paid in the Offer would be allocated to assets acquired
and liabilities assumed based on their estimated fair values at the
consummation date. Income (or loss) of GWF prior to the consummation date will
not be included in income of the combined company. See "Background of the
Offer--Reasons for the Combination--Purchase Accounting; Stock Repurchase
Program".     
   
STOCK EXCHANGE LISTING     
   
  The Ahmanson Common Stock is listed on the NYSE and the PSE. Applications
will be made to list the shares of Ahmanson Common Stock to be issued pursuant
to the Offer on the NYSE and the PSE.     
       
          
RESALE OF AHMANSON COMMON STOCK RECEIVED IN THE OFFER     
   
  The shares of Ahmanson Common Stock that would be issued to common
stockholders of GWF upon consummation of the Offer and the Merger have been
registered under the Securities Act. Such shares could be traded freely
without restriction by those stockholders who are not deemed to be
"affiliates" of GWF or Ahmanson, as that term is defined in rules promulgated
under the Securities Act.     
 
                                      62
<PAGE>
 
       
              COMPARISON OF RIGHTS OF HOLDERS OF GWF COMMON STOCK
                           AND AHMANSON COMMON STOCK
   
  As a consequence of the Consummation of the Offer and the Merger,
stockholders of GWF would become stockholders of Ahmanson. The following is a
summary of certain similarities and all material differences between the
rights of holders of Shares and the rights of holders of Ahmanson Common
Stock. As each of GWF and Ahmanson is organized under the laws of Delaware,
these differences arise solely from various provisions of the certificate of
incorporation and by-laws of each of GWF and Ahmanson, as well as from the
Ahmanson Rights Plan and the GWF Rights Plan.     
 
  The following summary does not purport to be a complete statement of the
rights of stockholders under the Restated Certificate of Incorporation of GWF
(the "GWF Charter"), the GWF By-laws and the GWF Rights Plan as compared with
the rights of Ahmanson's stockholders under the Ahmanson Charter, the by-laws
of Ahmanson (the "Ahmanson By-Laws") and the Ahmanson Rights Plan, or a
complete description of the specific provisions referred to herein. The
summary is qualified in its entirety by reference to the governing corporate
instruments, including the aforementioned instruments, of GWF and Ahmanson,
copies of which have been filed as exhibits hereto or to documents
incorporated herein by reference.
 
 Meetings of Stockholders
 
  Under Delaware law, special meetings of the stockholders may be called by
the board of directors or such other persons as may be authorized by the
certificate of incorporation or by-laws. The GWF Charter and By-laws do not
authorize any other person to call a special meeting. The Ahmanson Charter and
By-laws provide that a special meeting may also be called by a committee of
the Ahmanson Board which has been designated by the Ahmanson Board and
authorized to call a special meeting by a resolution of the Ahmanson Board or
by the Ahmanson By-laws.
 
 Number of Directors
 
  Under Delaware law, the number of directors shall be fixed by or in the
manner provided in the by-laws, unless the certificate of incorporation fixes
the number of directors, in which case a change in the number of directors
shall be made only by amendment to the certificate. The GWF By-laws provide
that the number of directors shall be determined by a resolution of the
majority of the GWF Board, but until some other number is fixed, the number of
directors shall be 12. The Ahmanson By-laws provide that the number of
directors shall be determined by a resolution of the majority of the Ahmanson
Board or a majority of the voting power of the outstanding shares of voting
stock.
 
 Advance Notice of Stockholder Nominations of Directors
 
  Under the GWF By-laws, nominations of persons for election to the GWF Board
may be made at a meeting of stockholders by any stockholder, provided that the
Secretary of GWF receives written notice not less than 60 days nor more than
90 days prior to the anniversary date of the immediately preceding annual
meeting. If the annual meeting is not called within 30 days before or after
such anniversary, the notice of a nomination must be received not later than
the close of business on the fifteenth day following the day on which such
notice of the date of the annual meeting was mailed or public disclosure was
made. Notices of nominations, among other things, must state the nominee's
name, age, business and residential address and principal occupation and
employment, as well as the class and number of shares of GWF stock
beneficially owned by such nominee and the nominee's consent to such
nomination. In addition, the notice must state the name and record address of
the nominating stockholder and the class and number of shares of GWF stock
beneficially owned by the stockholder.
 
  Under the Ahmanson By-laws, nominations of persons for election to the
Ahmanson Board may be made at a meeting of stockholders by any stockholder,
provided that the Secretary of Ahmanson receives written notice not less than
60 days nor more than 120 days prior to the meeting. If less than 65 days'
notice or prior public
 
                                      63
<PAGE>
 
disclosure of the date of the meeting is given or made by Ahmanson to
stockholders, the notice of a nomination must be received not later than the
close of business on the tenth day following the day on which such notice of
the date of the meeting was mailed or public disclosure was made. Notices of
nominations, among other things, must state the nominee's name, age, business
and residential address and principal occupation and employment, as well as
the class and number of shares of Ahmanson stock beneficially owned by such
nominee and any other information about the nominee required to be disclosed
in solicitations for proxies for the election of directors pursuant to
Regulation 14A under the Exchange Act. In addition, the notice must state the
name and record address of the nominating stockholder and the class and number
of shares of Ahmanson stock beneficially owned by the stockholder.
 
 Stockholder Proposal Procedures
 
  Under the GWF By-laws, business is properly brought before an annual meeting
if the Secretary of GWF receives written notice not less than 60 days nor more
than 90 days prior to the anniversary date of the immediately preceding annual
meeting. If the annual meeting is not called within 30 days before or after
such anniversary date, notice by the stockholder must be received not later
than the close of business on the fifteenth day following the day on which
notice of the date of the annual meeting was mailed or public disclosure was
made. Stockholder notices must state, among other things, a brief description
of the business desired to be brought before the annual meeting and the
reasons for conducting such business at the annual meeting, the name and
record address of the stockholder proposing the business, the class and number
of shares of GWF stock beneficially owned by the stockholder and any material
interest in such business.
 
  Under the Ahmanson By-laws, business is properly brought before an annual
meeting if the Secretary of Ahmanson receives written notice not less than 60
days nor more than 120 days prior to the annual meeting. If less than 65 days'
notice or prior public disclosure of the date of the annual meeting is given
or made by Ahmanson to stockholders, notice by the stockholder must be
received not later than the close of business on the tenth day following the
day on which such notice of the date of the annual meeting was mailed or
public disclosure was made. Stockholder notices must state, among other
things, a brief description of the business desired to be brought before the
annual meeting and the reasons for conducting such business at the annual
meeting, the name and record address of the stockholder proposing the
business, the class and number of shares of Ahmanson stock beneficially owned
by the stockholder, any material interest in such business and any other
information relating to the stockholder or the proposal required to be
disclosed in solicitations for proxies for the election of directors pursuant
to Regulation 14A under the Exchange Act.
 
 Indemnification
 
  Both the GWF By-laws and the Ahmanson By-laws generally provide for the
indemnification of persons serving as a director, officer, employee or agent
of the respective corporations or at the request of the respective
corporations as a director, officer, employee or agent of another corporation
or of a partnership, joint venture, trust or other enterprise, to the fullest
extent authorized by the DGCL. The Ahmanson By-Laws provide that such right to
indemnification may only be extended to employees and agents in a specific
case by action of the Ahmanson Board.
 
 Certain Voting Rights with Respect to Proposed Mergers
 
  Under Delaware law, certain mergers and consolidations or the sale of all or
substantially all of the assets of a corporation requires the approval of the
holders of a majority (unless the certificate of incorporation requires a
higher percentage) of the outstanding shares of such corporation entitled to
vote thereon. Neither the GWF Charter nor the Ahmanson Charter requires a
higher percentage generally.
 
 Certain Voting Rights with Respect to Transactions with Substantial
Stockholders
 
  The Ahmanson Charter provides that certain transactions between Ahmanson and
a substantial stockholder (generally a person or group holding capital stock
representing 10% or more of the outstanding voting power of
 
                                      64
<PAGE>
 
Ahmanson) require the approval of the holders of 80% of the capital stock of
Ahmanson entitled to vote for the election of directors, including (i) the
repurchase by Ahmanson of capital stock representing 10% or more of the total
voting power of Ahmanson from such a substantial stockholder, (ii) certain
mergers, consolidations, combinations or reorganizations of Ahmanson or the
sale of all or a substantial part of the assets of Ahmanson or its
subsidiaries where such a substantial stockholder or its affiliates are
parties to the transaction and (iii) certain other exchanges of securities,
cash or other properties or assets of Ahmanson involving such a substantial
stockholder or its affiliates, except, in the case of (ii) or (iii), for any
transaction which has been approved by the Ahmanson Board, including by the
vote of at least two-thirds of the directors unaffiliated with the substantial
stockholder and its affiliates. The GWF Charter contains no similar provision.
 
 Cumulative Voting
 
  Under Delaware law, stockholders of a corporation are not entitled to
cumulate their votes in the election of directors unless the corporation's
certificate of incorporation so provides. Neither the GWF Charter nor the
Ahmanson Charter provides for cumulative voting.
 
 Removal of Directors; Filling Vacancies on the Board of Directors
 
  Under Delaware law, any or all directors of a corporation which does not
have cumulative voting or a classified board may be removed, with or without
cause, by the holders of a majority of the shares entitled to vote at an
election of directors, unless such corporation's certificate of incorporation
provides otherwise. GWF has a classified board and the GWF Charter provides
that directors may be removed only for cause. The Ahmanson Charter does not
limit the right of stockholders to remove directors with or without cause.
 
  Under Delaware law, unless otherwise provided in the corporation's
certificate of incorporation or by-laws, vacancies and newly-created
directorships resulting from any increase in the authorized number of
directors may be filled by a majority of the directors in office. The GWF
Charter provides that any vacancy, whether arising through death, resignation
or removal of a director, or through an increase in the number of directors of
any class, shall be filled by a majority vote of the remaining directors of
the class in which the vacancy occurs or by the sole remaining director of
that class if only one such director remains. Neither the Ahmanson Charter nor
the Ahmanson By-laws provide for vacancies or newly-created directorships to
be filled by stockholder vote.
 
 Stockholder Action by Written Consent
   
  Under Delaware law, unless otherwise provided in the certificate of
incorporation, any action which may be taken at any annual or special meeting
may be taken without a meeting and without prior notice if a consent in
writing, setting forth the action so taken, shall be signed by the holders of
outstanding shares having not less than the minimum number of votes that would
be necessary to authorize or take such action at a meeting at which all shares
entitled to vote thereon were present and voted. The GWF Charter contains no
provisions restricting action by written stockholder consent. Under the GWF
By-laws, any stockholder of GWF seeking to have GWF's stockholders authorize
or take corporate action by written consent must, by written notice to GWF's
Secretary, request that the GWF Board set a record date. The GWF Board is then
required, within ten days after the date on which such request is received, to
adopt a resolution fixing the record date, which must be within ten days of
the date of such resolution. The Ahmanson Charter prohibits any action by
written stockholder consent.     
 
 Amendment of By-laws
   
  Under Delaware law, the power to adopt, amend or repeal by-laws is vested in
the stockholders unless the certificate of incorporation confers the power to
adopt, amend or repeal by-laws upon the directors as well. Both the GWF
Charter and the Ahmanson Charter grant such power to their respective boards
of directors. The GWF By-laws provide that the GWF Board may not amend or
appeal any of the by-law provisions added or changed in the Consent
Solicitation without the approval of the holders of a majority of the voting
stock of GWF.     
 
 
                                      65
<PAGE>
 
 Classification of Board of Directors
 
  Delaware law permits (but does not require) a certificate of incorporation
to provide that a board of directors be divided into classes, with each class
having a term of office longer than one year but not longer than three years.
The GWF Charter provides that the GWF Board shall have three classes, which
shall be as nearly equal in number as possible. The directors of each class
shall serve for a term ending at the third annual meeting following the annual
meeting at which they were elected. The Ahmanson Charter does not provide for
a classified board.
 
 Ahmanson Rights Plan
 
  On July 26, 1988, the Ahmanson Board declared a dividend distribution of
stock purchase rights, consisting of one common stock purchase right (a
"Primary Right") and one preferred stock purchase right (a "Secondary Right"),
to holders of Ahmanson Common Stock outstanding on August 8, 1988; together,
the Primary Rights and Secondary Rights are referred to as the "Ahmanson
Rights".
 
  In the event that any person or affiliated group becomes the beneficial
owner of 15% or more of the outstanding shares of Ahmanson Common Stock,
proper provision shall be made so that each holder of a Primary Right (other
than Primary Rights beneficially owned by the 15% beneficial owner) will
thereafter have the right to purchase from Ahmanson one share of Ahmanson
Common Stock for each two outstanding Primary Rights at an exercise price
equal to 20% of the then current per share market price of the Ahmanson Common
Stock. In the event that any person or affiliated group becomes the beneficial
owner of 15% or more of the outstanding Ahmanson Common Stock and thereafter
Ahmanson is acquired in a merger or other business combination transaction or
50% or more of its consolidated assets or earning power are sold, proper
provision will be made so that each holder of a Secondary Right, will
thereafter have the right to receive, upon the exercise thereof at the then
current exercise price of the Secondary Right (currently, $60), that number of
shares of common stock of the acquiring company which at the time of such
transaction will have a market value of two times the exercise price of the
Secondary Right. In the event that any person or affiliated group becomes the
beneficial owner of 25% or more of the outstanding shares of Ahmanson Common
Stock, proper provision shall be made so that each holder of a Secondary
Right, other than Secondary Rights beneficially owned by the acquiring person,
will thereafter have the right to receive upon exercise that number of shares
of Ahmanson Common Stock having a market value of two times the exercise price
of the Secondary Right.
 
 GWF Rights Plan
   
  On June 24, 1986, the GWF Board declared a dividend distribution of one
GWF Right for each Share of GWF common stock outstanding on July 14, 1986. On
June 27, 1995, the GWF Board approved a number of amendments to the GWF Rights
Plan.     
   
  In the event that any person or group becomes the beneficial owner of 15% or
more of the outstanding Shares other than pursuant to a Qualifying Offer,
proper provision will be made so that each holder of a Right, other than
Rights beneficially owned by the acquiring person, will thereafter have the
right to receive upon exercise that number of Shares having a market value of
two times the exercise price of the Right. In the event that, at any time
following such acquisition of 15% or more of the outstanding Shares, GWF is
acquired in a merger or other business combination transaction or 50% or more
of its consolidated assets or earning power are sold (other than such a
transaction resulting from a Qualifying Offer and meeting certain fair price
criteria), proper provision will be made so that each holder of a Right will
thereafter have the right to receive, upon the exercise thereof at the then
current exercise price of the Right, that number of shares of common stock of
the acquiring company which at the time of such transaction will have a market
value of two times the exercise price of the Right.     
 
                                      66
<PAGE>
 
                          MARKET PRICES AND DIVIDENDS
 
AHMANSON
 
  The Ahmanson Common Stock is listed and principally traded on the NYSE and
is also listed on the PSE. The following table sets forth the range of high
and low sales prices as reported on the NYSE Composite Tape, together with the
per share dividends declared by Ahmanson, during the periods indicated.
 
<TABLE>   
<CAPTION>
                                                         PRICE RANGE
                                                       ---------------
      QUARTER                                           HIGH     LOW   DIVIDENDS
      -------                                          ------- ------- ---------
      <S>                                              <C>     <C>     <C>
      1994:
        First......................................... $20 1/4 $16 3/8   $.22
        Second........................................  20 1/8  16 1/2    .22
        Third.........................................  22 3/4  18 7/8    .22
        Fourth........................................    21    15 1/4    .22
      1995:
        First......................................... $18 5/8 $16       $.22
        Second........................................  23 3/4  18 1/8    .22
        Third.........................................  25 3/4  20 5/8    .22
        Fourth........................................  28 3/8  24 1/8    .22
      1996:
        First......................................... $26 3/4 $21 1/4   $.22
        Second........................................  27 5/8  22 1/4    .22
        Third.........................................  28 3/8  23 3/8    .22
        Fourth........................................  34 1/2  27 7/8    .22
      1997:
        First......................................... $45 1/4 $32       $.22
        April 1 to [     ], 1997......................
</TABLE>    
   
  On February 14, 1997, the last trading day before public announcement of the
Original Proposal, the closing price per share of Ahmanson Common Stock on the
NYSE was $40.50. On March 14, 1997, the last trading day before public
announcement of the Ahmanson Merger Proposal, the closing price per share of
Ahmanson Common Stock on the NYSE was $40.25. On [      ], 1997, the last
trading day before public announcement of the Offer, the closing price per
share of Ahmanson Common Stock on the NYSE was $[    ]. Past price performance
is not necessarily indicative of likely future price performance. Holders of
GWF Common Stock are urged to obtain current market quotations for shares of
Ahmanson Common Stock.     
 
  Holders of Ahmanson Common Stock are entitled to receive dividends from
funds legally available therefor when, as and if declared by the Ahmanson
Board. Although the Ahmanson Board presently intends to continue the policy of
paying quarterly cash dividends, future dividends of Ahmanson would depend
upon the earnings of Ahmanson and its subsidiaries, their financial condition
and other factors including applicable governmental regulations and policies.
See "Description of Ahmanson Capital Stock--Certain Regulatory
Considerations". In addition, the Ahmanson Board presently intends to continue
its current stock purchase program, since it currently believes that doing so
is more advantageous to stockholders generally than increasing the level of
dividends. Ahmanson believes that its current dividend yield is above the
average dividend yield for comparable savings institutions. The Ahmanson Board
will continue to determine dividends by considering the factors listed above
and expects that dividends will continue to be paid in amounts consistent with
prior levels. As the factors used to determine dividends necessarily involve a
number of future contingencies to which all companies are subject, there can
be no certainty that dividends of the combined entity will equal Ahmanson's
current dividend rate per share.
 
 
                                      67
<PAGE>
 
GWF
   
  The Shares are listed and principally traded on the NYSE and are also listed
on the PSE and the London Stock Exchange. The following table sets forth the
range of high and low sales prices as reported on the NYSE Composite Tape,
together with the per Share dividends declared by GWF, during the periods
indicated.     
 
<TABLE>   
<CAPTION>
                                                         PRICE RANGE
                                                       ---------------
      QUARTER                                           HIGH     LOW   DIVIDENDS
      -------                                          ------- ------- ---------
      <S>                                              <C>     <C>     <C>
      1994:
        First......................................... $20 1/2 $16 1/8   $.23
        Second........................................  19 3/8  15 3/8    .23
        Third.........................................  20 7/8  18 3/8    .23
        Fourth........................................    19    15 3/4    .23
      1995:
        First......................................... $18 7/8   $16     $.23
        Second........................................  22 1/2  18 7/8    .23
        Third.........................................  23 3/4  20 1/4    .23
        Fourth........................................  27 1/8  22 5/8    .23
      1996:
        First......................................... $26 1/8 $22 1/2   $.23
        Second........................................  24 1/2  21 3/4    .25
        Third.........................................  26 3/4  21 1/8    .25
        Fourth........................................  31 1/8  27 1/4    .25
      1997:
        First......................................... $48 5/8 $28 1/8   $.25
        April 1 to [      ], 1997.....................                    .25
</TABLE>    
   
  On February 14, 1997, the last trading day before public announcement of the
Original Proposal, the closing price per share of the Shares on the NYSE was
$34.25. On March 14, 1997, the last trading day before public announcement of
the Ahmanson Merger Proposal, the closing price per share of the Shares on the
NYSE was $45.50. On [      ], 1997, the last trading day before announcement
of the Offer, the closing price per share of the Shares on the NYSE was
$[    ]. Past price performance is not necessarily indicative of likely future
price performance. Holders of shares of GWF Common Stock are urged to obtain
current market quotations for the Shares.     
   
  Holders of Shares are entitled to receive dividends from funds legally
available therefor when, as and if declared by the GWF Board. Ahmanson has no
information with respect to the GWF Board's present intentions with respect to
its policy of paying quarterly cash dividends.     
 
                                      68
<PAGE>
 
                             BUSINESS OF AHMANSON
 
  Ahmanson, a Delaware corporation, is one of the largest residential real
estate and consumer finance-oriented financial services companies in the
United States, owning subsidiaries principally engaged in the consumer banking
business and related financial services activities. Ahmanson was originally
organized in 1928 in California and changed its state of incorporation from
California to Delaware in 1985.
 
  Approximately 97% of Ahmanson's consolidated revenues in 1996 were derived
from the operations of Home Savings, which is wholly owned by Ahmanson. Home
Savings represented over 99% of Ahmanson's consolidated assets at December 31,
1996. Home Savings is currently the largest savings institution in the
United States. Home Savings is regulated by the OTS and the Federal Deposit
Insurance Corporation ("FDIC") which, through the Savings Association
Insurance Fund ("SAIF") and the Bank Insurance Fund ("BIF"), insures the
deposit accounts of Home Savings. Home Savings is a member of the Federal Home
Loan Bank ("FHLB") of San Francisco, which is one of the twelve regional banks
for federally insured depository institutions comprising the FHLB System. Home
Savings is further subject to regulations of the Board of Governors of the
Federal Reserve System ("Federal Reserve Board") with respect to reserves
required to be maintained against certain deposits and certain other matters.
 
  Home Savings conducts the majority of its business in California. Home
Savings currently conducts certain of its savings and lending operations
outside California under the name "Savings of America, a division of Home
Savings of America, FSB". Home Savings also conducts certain of its consumer
lending operations under the name "Home Consumer Finance of America" and
certain of its real estate lending operations through Ahmanson Mortgage
Company, a wholly-owned subsidiary.
 
  Ahmanson's principal business is attracting funds from the general public
and institutions and originating and investing in residential real estate
mortgage loans, consumer and small business loans, MBSs and investment
securities. MBSs include securities issued or guaranteed by government-
sponsored enterprises such as the Federal National Mortgage Association, the
Federal Home Loan Mortgage Corporation and the Government National Mortgage
Association, mortgage pass-through securities issued by other entities,
including Home Savings, and collateralized mortgage obligations. Ahmanson's
primary sources of revenues are interest earned on loans and MBSs, income from
investment securities, gains on sales of loans and MBSs, fees earned in
connection with loans and deposits, and income earned on its portfolio of
loans and MBSs serviced for investors. Its principal expense is interest
incurred on interest-costing liabilities, including deposits and borrowings.
Ahmanson's primary sources of funds are deposits, principal and interest
payments on loans and MBSs, proceeds from sales of loans and MBSs and
borrowings. Scheduled payments on loans and MBSs are a relatively stable
source of funds, while prepayments of loans and MBSs and flows in deposits
vary widely. Ahmanson, through certain subsidiaries, engages in real estate
development and investment ("REI") activities.
 
  Ahmanson's operations are significantly influenced by general economic
conditions, the monetary and fiscal policies of the federal government and the
regulatory policies of governmental authorities. Deposit flows and the cost of
interest-costing liabilities ("cost of funds") to Ahmanson are influenced by
interest rates on competing investments and general market interest rates.
Similarly, Ahmanson's loan volume and yields on loans and MBSs and the level
of prepayments on such loans and MBSs are affected by market interest rates,
as well as additional factors affecting the supply of and demand for housing
and the availability of funds.
   
  Home Savings has been engaged in a process of changing its focus from being
a traditional savings institution to being a consumer bank for more than two
years. One significant aspect of this change in focus is an increase in the
types of services and products offered to Home Savings' customers. This has
been implemented in part through the creation of a consumer lending division
which offers products such as home equity loans, automobile loans and
unsecured personal lines of credit, the development of a business banking
group which offers products such as small business loans and cash management
services, the expansion of the securities and insurance products and services
offered by Griffin Financial Services, which is a wholly-owned subsidiary of
Ahmanson and an affiliate of Home Savings, and the introduction of electronic
banking. The transition to consumer banking products is an ongoing process and
Ahmanson has not projected any timetable for completion of this process.
Ahmanson believes that the extensive experience of its management in banking
and consumer finance contributes significantly to its ability to manage the
transition to full-service consumer     
 
                                      69
<PAGE>
 
   
banking. Home Savings' executive management collectively has 123 years of
direct or advisory experience in banking or consumer finance. Home Savings'
acquisition of 61 former First Interstate branches, completed on September 20,
1996, accelerated Ahmanson's progress toward its objective of becoming a full-
service provider of consumer and small business banking products. In the
transaction, Ahmanson acquired approximately $1.9 billion in deposits and $1.1
billion in loans. Ahmanson recorded approximately $185 million in goodwill
related to the acquisition. Ahmanson's results of operations for the year
ended 1996 included operating results of the acquired branches only after
September 20, 1996.     
   
  Ahmanson began originating consumer finance loans in May 1995. During the
balance of 1995, Ahmanson originated approximately $35 million of consumer
loans and had approximately $32 million of consumer loans outstanding as of
December 31, 1995. By comparison, Ahmanson originated approximately $270
million of consumer loans during 1996 and, due in substantial part to the
acquisition of former First Interstate branches, had approximately $708
million of consumer loans outstanding as of December 31, 1996. The consumer
loans acquired as part of this branch acquisition added critical mass to the
consumer finance operation, allowing it to take advantage of economies of
scale earlier than would otherwise have been possible.     
   
  In early 1996, Ahmanson made the strategic decision to pursue the small
business market. In the ordinary course, this decision would have been
implemented in a deliberate manner and the portfolio would have grown slowly
over time. As a result of the First Interstate branch acquisition, however,
Ahmanson needed to and did create all the systems and procedures necessary to
operate this business prior to the closing of the branch acquisition in
September 1996. The acquisition therefore provided the impetus for making the
small business unit operational earlier than would otherwise likely have
occurred and is allowing the unit to take advantage of economies of scale
earlier than would otherwise have been possible.     
   
  The change in focus is reflected at Ahmanson by increased scrutiny of the
use of capital. Ahmanson's goal is to hold an asset or engage in an activity
only if the income generated by such asset or activity adequately compensates
Ahmanson and its stockholders for the use of the capital necessary to hold the
asset or engage in the activity. Between October 1995, when Ahmanson initiated
its first stock purchase program, and March 31, 1997, Ahmanson returned
capital to its stockholders by repurchasing 19.2 million shares of Ahmanson
Common Stock. During the third quarter of 1996, Ahmanson also redeemed at par
$175 million of its 9.60% Preferred Stock, Series B.     
 
                                BUSINESS OF GWF
 
  GWF, with consolidated assets of approximately $42.9 billion, is a savings
and loan holding company organized in 1955 under the laws of the state of
Delaware. The principal assets of GWF are the capital stock of GW Bank and
Aristar. GW Bank is a federally chartered stock savings bank and conducts most
of its retail banking through 416 offices located in California and Florida.
Real estate lending operations are conducted directly by GW Bank or by direct
subsidiaries through 220 offices in 27 states with concentrations in
California, Florida, Texas and Washington. Directly or through its
subsidiaries, GW Bank also engages in mortgage banking, and other related
financial services. Aristar conducts consumer finance operations through
502 offices in 23 states, most of which operate principally under the names
Blazer Financial Services or City Finance Company and provide direct
installment loans and related credit insurance services and purchase retail
installment contracts.
 
  GWF is a legal entity separate and distinct from GW Bank. The principal
source of GWF's revenues on an unconsolidated basis has been dividends,
interest and management fees from GW Bank. Various statutory and regulatory
restrictions and tax considerations, however, can limit, directly or
indirectly, the amounts that may be paid by GW Bank to GWF. Dividends from
Aristar continue to be a source of revenue to GWF.
 
  The operations of GW Bank are significantly influenced by general economic
conditions, by the related monetary and fiscal policies of the federal
government, and by the regulatory policies of financial institution regulatory
authorities, including the Federal Reserve Board, the OTS and the FDIC.
Deposit flows and cost of funds are influenced by interest rates on competing
investments and general market rates of interest. Lending and other investment
activities are affected by the demand for mortgage financing and consumer and
other types of loans, which in turn are affected by the interest rates at
which such financing may be offered and other factors affecting the supply of
housing and the availability of funds.
 
                                      70
<PAGE>
 
                               AHMANSON AND GWF
 
                   PRO FORMA COMBINED FINANCIAL INFORMATION
 
                                  (UNAUDITED)
   
  The following unaudited pro forma combined financial statements were
prepared in connection with the Proposed Merger (in which it is assumed each
outstanding share of GWF Common Stock will be exchanged for 1.2 shares of
Ahmanson Common Stock at a price per share of Ahmanson Common Stock of
$39.375) and give effect to the purchase accounting adjustments and other
assumptions described in the accompanying notes. The unaudited pro forma
combined statement of financial condition is based upon the condensed
consolidated statement of financial condition (unaudited) of Ahmanson and the
consolidated statement of financial condition (unaudited) of GWF as of
March 31, 1997. The unaudited pro forma combined statement of operations for
the year ended December 31, 1996 is based upon the consolidated statement of
operations of Ahmanson and the consolidated statement of operations of GWF for
the year ended December 31, 1996. The unaudited pro forma combined statement
of operations for the three months ended March 31, 1997 is based on the
condensed consolidated statement of operations (unaudited) of Ahmanson and the
consolidating statement of operations (unaudited) of GWF for the three months
ended March 31, 1997.     
 
  The adjustments already included in the unaudited pro forma combined
financial statements are subject to update as additional information becomes
available. An increase in the unallocated portion of the purchase price
remaining after fair value adjustments will result in a greater final
allocation to goodwill, which will have a corresponding effect on amortization
expense and will reduce tangible common equity. A decrease in the unallocated
portion of the purchase price remaining after fair value adjustments will have
the opposite effects. Accordingly, the final pro forma combined amounts will
differ from those set forth in the unaudited pro forma combined financial
statements.
   
  The information shown below should be read in conjunction with, and is
qualified in its entirety by reference to the consolidated statement of
financial condition and consolidated statement of operations at and for the
year ended December 31, 1996, of Ahmanson and the consolidated statement of
financial condition and consolidated statement of operations at and for the
year ended December 31, 1996, of GWF. The pro forma data are presented for
informational purposes and are not necessarily indicative of the financial
position or the results of operations of the combined company that actually
would have occurred had the Merger been consummated as of the dates or for the
periods presented. The pro forma amounts are also not necessarily indicative
of the future financial position or future results of operations of the
Surviving Corporation. In particular, Ahmanson expects to achieve significant
operating cost savings as a result of the Merger. These cost savings, assuming
they are realized, would significantly reduce noninterest expense and increase
net income. Additionally, Ahmanson believes opportunities exist to enhance
certain revenues through the expansion of consumer and business loans, cash
management services, retail banking, and investment sales generated through GW
Bank branches. These revenue enhancements, if they are realized (which cannot
be assured as to amount or timing), would increase net interest income or fee
income and increase net income. See "Background of the Offer--Reasons for the
Combination". No adjustment has been included in the pro forma amounts for
such cost savings or revenue enhancements.     
 
                                      71
<PAGE>
 
                                AHMANSON AND GWF
 
              PRO FORMA COMBINED STATEMENT OF FINANCIAL CONDITION
                                
                             MARCH 31, 1997(A)     
                                  (UNAUDITED)
 
<TABLE>   
<CAPTION>
                                           HISTORICAL      PRO FORMA
                                        ----------------- ADJUSTMENTS   PRO FORMA
                                        AHMANSON    GWF   (B, C & D)    COMBINED
                                        --------  ------- -----------   ---------
                                                    (IN MILLIONS)
<S>                                     <C>       <C>     <C>           <C>
ASSETS
Cash and investment securities........  $ 1,277   $ 2,448   $   --       $ 3,725
Mortgage-backed securities............   14,417     7,536       --        21,953
Loans, net of the allowance for loan
 losses...............................   30,922    31,211       --        62,133
Goodwill and core deposit intangibles.      299       277     4,266 (E)    4,842
Other assets..........................    1,782     1,406      (164)(B)    3,024
                                        -------   -------   -------      -------
    Total assets......................  $48,697   $42,878   $ 4,102      $95,677
                                        =======   =======   =======      =======
LIABILITIES, COMPANY-OBLIGATED CAPITAL
SECURITIES OF SUBSIDIARY TRUST AND
STOCKHOLDERS' EQUITY
Deposits..............................  $34,399   $28,158   $   --       $62,557
Borrowings............................   10,631    10,661       --        21,292
Other liabilities.....................    1,120     1,074       175 (H)    2,369
                                        -------   -------   -------      -------
    Total liabilities.................   46,150    39,893       175       86,218
Company-obligated Capital Securities
 of Subsidiary Trust..................      148       400       --           548
Stockholders' equity
Preferred stock.......................      483       165       --           648
Common stock..........................        1       138      (136)           3
Additional paid-in capital............      119       677     5,668        6,464
Retained earnings.....................    1,920     1,563    (1,563)       1,920
Other.................................     (124)       42       (42)        (124)
                                        -------   -------   -------      -------
    Total stockholders' equity........    2,399     2,585     3,927 (F)    8,911
                                        -------   -------   -------      -------
    Total liabilities, Company-
     obligated Capital Securities of
     Subsidiary Trust and
     stockholders' equity.............  $48,697   $42,878   $ 4,102      $95,677
                                        =======   =======   =======      =======
</TABLE>    
 
             See Notes to Pro Forma Combined Financial Statements.
 
                                       72
<PAGE>
 
                                
                             AHMANSON AND GWF     
                   
                PRO FORMA COMBINED STATEMENT OF OPERATIONS     
                  
               FOR THE THREE MONTHS ENDED MARCH 31, 1997(A)     
                                   
                                (UNAUDITED)     
 
<TABLE>   
<CAPTION>
                                             HISTORICAL    PRO FORMA
                                            ------------- ADJUSTMENTS PRO FORMA
                                            AHMANSON GWF    (C & G)   COMBINED
                                            -------- ---- ----------- ---------
                                              (IN MILLIONS EXCEPT PER COMMON
                                                        SHARE DATA)
<S>                                         <C>      <C>  <C>         <C>
Interest income
Loans......................................  $ 578   $617    $ --      $1,195
Mortgage-backed securities.................    268    139      --         407
Other......................................     16     28      --          44
                                             -----   ----    -----     ------
  Total interest income....................    862    784      --       1,646
                                             -----   ----    -----     ------
Interest expense
Deposits...................................    375    280      --         655
Borrowings.................................    170    166      --         336
                                             -----   ----    -----     ------
  Total interest expense...................    545    446      --         991
                                             -----   ----    -----     ------
Net interest income........................    317    338      --         655
Provision for loan losses..................     24     40      --          64
                                             -----   ----    -----     ------
Net interest income after provision for
 loan losses...............................    293    298      --         591
                                             -----   ----    -----     ------
Noninterest income.........................     89     95      --         184
Noninterest expense........................    217    278       43        538
                                             -----   ----    -----     ------
Income before income taxes.................    165    115      (43)       237
Income tax expense.........................     62     49      --         111
                                             -----   ----    -----     ------
Net income.................................  $ 103   $ 66    $ (43)    $  126
                                             =====   ====    =====     ======
Net income applicable to common stock......  $  99   $ 62    $ (46)    $  115
                                             =====   ====    =====     ======
Net income per common share
  Primary..................................  $0.93                     $ 0.44
                                             =====                     ======
  Fully diluted............................  $0.87                     $ 0.44
                                             =====                     ======
Dividends declared.........................  $0.22                     $ 0.22
                                             =====                     ======
Weighted average common shares outstanding
  Primary..................................  102.3           161.2      263.5
                                             =====           =====     ======
  Fully diluted............................  114.0             N/A      263.5
                                             =====           =====     ======
</TABLE>    
 
             See Notes to Pro Forma Combined Financial Statements.
 
                                       73
<PAGE>
 
                                AHMANSON AND GWF
 
                   PRO FORMA COMBINED STATEMENT OF OPERATIONS
 
                    FOR THE YEAR ENDED DECEMBER 31, 1996(A)
                                  (UNAUDITED)
 
<TABLE>   
<CAPTION>
                                            HISTORICAL     PRO FORMA
                                          --------------- ADJUSTMENTS PRO FORMA
                                          AHMANSON  GWF     (C & G)   COMBINED
                                          -------- ------ ----------- ---------
                                          (IN MILLIONS EXCEPT PER COMMON SHARE
                                                          DATA)
<S>                                       <C>      <C>    <C>         <C>
Interest income
Loans....................................  $2,297  $2,482    $ --      $4,779
Mortgage-backed securities...............   1,161     638      --       1,799
Other....................................      57     114      --         171
                                           ------  ------    -----     ------
    Total interest income................   3,515   3,234      --       6,749
                                           ------  ------    -----     ------
Interest expense
Deposits.................................   1,524   1,179      --       2,703
Borrowings...............................     739     677      --       1,416
                                           ------  ------    -----     ------
    Total interest expense...............   2,263   1,856      --       4,119
                                           ------  ------    -----     ------
Net interest income......................   1,252   1,378      --       2,630
Provision for loan losses................     145     209      --         354
                                           ------  ------    -----     ------
Net interest income after provision for
 loan losses.............................   1,107   1,169      --       2,276
                                           ------  ------    -----     ------
Noninterest income.......................     252     332      --         584
Noninterest expense
SAIF recapitalization assessment.........     244     188      --         432
Other....................................     935   1,126      169      2,230
                                           ------  ------    -----     ------
    Total noninterest expense............   1,179   1,314      169      2,662
                                           ------  ------    -----     ------
Income before income taxes...............     180     187     (169)       198
Income tax expense.......................      35      71       (5)       101
                                           ------  ------    -----     ------
Net income...............................  $  145  $  116    $(164)    $   97
                                           ======  ======    =====     ======
Net income applicable to common stock....  $  100  $   96    $(158)    $   38
                                           ======  ======    =====     ======
Net income per common share:
  Primary and fully diluted..............  $ 0.91                      $ 0.14
                                           ======                      ======
Dividends declared.......................  $ 0.88                      $ 0.88
                                           ======                      ======
Average common shares outstanding........   109.7            161.2      270.9
                                           ======            =====     ======
</TABLE>    
 
             See Notes to Pro Forma Combined Financial Statements.
 
                                       74
<PAGE>
 
                               AHMANSON AND GWF
 
               NOTES TO PRO FORMA COMBINED FINANCIAL STATEMENTS
                                  (UNAUDITED)
 
NOTE A: BASIS OF PRESENTATION
   
  The unaudited pro forma combined statement of financial condition combines
the historical condensed consolidated statement of condition (unaudited) of
Ahmanson and the consolidated statement of financial condition (unaudited) of
GWF as if the Combination had become effective on March 31, 1997. The
unaudited pro forma combined statement of operations for the year ended
December 31, 1996 combines the historical consolidated statement of operations
of Ahmanson and the consolidated statement of operations of GWF as if the
Combination had become effective immediately prior to January 1, 1996. The
unaudited pro forma combined statement of operations for the three months
ended March 31, 1997 combines the historical condensed consolidated statement
of operations (unaudited) of Ahmanson and the consolidating statement of
operations (unaudited) of GWF as if the Combination had become effective
immediately prior to January 1, 1997. Certain amounts in the historical
consolidated financial statements of GWF have been reclassified in the
unaudited pro forma combined financial statements to conform to Ahmanson's
historical financial statements.     
   
  The Combination would be accounted for as a purchase. Under this method of
accounting, assets and liabilities of GWF are adjusted to their estimated fair
value and combined with the recorded book values of the assets and liabilities
of Ahmanson. Applicable income tax effects of such adjustments are included as
a component of Ahmanson's net deferred taxes with a corresponding offset to
goodwill.     
 
  Ahmanson has not had access to GWF's records in order to make a
determination of the fair value of its assets and liabilities. Based on
publicly available information in the 1996 GWF 10-K, the difference between
fair value of GWF financial instruments and their book value is immaterial.
Therefore, for purposes of these unaudited pro forma combined financial
statements, it has been assumed that the net book value of GWF's assets
(excluding intangible assets) minus liabilities approximates fair value.
   
  Ahmanson expects to achieve significant operating cost savings as a result
of the Combination. Additionally, Ahmanson believes opportunities exist to
enhance certain revenues through the expansion of consumer and business loans,
cash management services, consumer deposits, and investment sales generated
through GW Bank branches. These revenue enhancements, if they are realized
(which cannot be assured as to amount or timing), would increase net interest
income or fee income and increase net income. See "Background of the Offer--
Reasons for the Combination". No adjustment has been included in the unaudited
pro forma combined financial statements for the operating cost savings or
revenue enhancements.     
 
NOTE B: PURCHASE PRICE
   
  The purchase price to be paid for GWF Common Stock is based on a formula
that establishes an Exchange Ratio of the number of shares of Ahmanson Common
Stock to be exchanged for each share of GWF Common Stock, depending on the
average closing price of Ahmanson Common Stock during a specified period. If
the Combination is consummated, each outstanding share of GWF Common Stock
would be converted into a number of shares of Ahmanson Common Stock determined
by dividing $50 by the average closing price of Ahmanson Common Stock on the
NYSE on the 20 trading days ending on the third trading day prior to the
Expiration Date for the Offer, subject to a maximum of 1.2 shares of Ahmanson
Common Stock and a minimum of 1.1 shares of Ahmanson Common Stock for each
share of GWF Common Stock.     
   
  For the purpose of these pro forma combined financial statements, the
purchase price is assumed to be based on an assumed Exchange Ratio of 1.2 at
the closing price per share of Ahmanson Common Stock on May 9, 1997. Shares
issuable upon the exercise of GWF's stock options are not included in the
number of outstanding shares of GWF Common Stock on the assumption that all
options will become equivalent options to purchase     
 
                                      75
<PAGE>
 
                               AHMANSON AND GWF
 
         NOTES TO PRO FORMA COMBINED FINANCIAL STATEMENTS--(CONTINUED)
                                  (UNAUDITED)
   
Ahmanson Common Stock. In addition, the number of shares of GWF Common Stock
used in calculating the total market value of Ahmanson Common Stock to be
issued in connection with the Combination reflects an exchange of Ahmanson
Common Stock for the outstanding shares of GWF Common Stock, exclusive of
GWF's common stock equivalents.     
   
  Additionally, the purchase price includes $164 million which Ahmanson has
invested in GWF Common Stock between December 31, 1996 and May 9, 1997. This
amount is reflected as a reduction to "Other assets" in the unaudited pro
forma combined financial statements.     
   
  The total market value of the Ahmanson Common Stock to be issued in
connection with the Combination is calculated as follows:     
 
<TABLE>   
      <S>                                                            <C>
      (IN THOUSANDS, EXCEPT EXCHANGE RATIO AND PRICE PER SHARE)
      Shares of GWF Common Stock outstanding on March 31, 1997 less
       3,561 shares owned by Ahmanson as of May 9, 1997.............    134,325
      Exchange Ratio................................................       1.20
                                                                     ----------
      Ahmanson Common Stock to be issued............................    161,190
      Closing market price per share of Ahmanson Common Stock on     $   39.375
       May 9, 1997.................................................. ----------
      Total market value of Ahmanson Common Stock to be issued...... $6,347,000
      Cost of GWF Common Stock purchased by Ahmanson between            164,000
       December 31, 1996 and May 9, 1997............................ ----------
      Total purchase price.......................................... $6,511,000
                                                                     ==========
</TABLE>    
 
  In addition to the total market value of the Ahmanson Common Stock to be
issued and the cost of the GWF Common Stock acquired by Ahmanson since
December 31, 1996, the total purchase price would include other direct
acquisition costs, such as investment banking, legal, accounting and other
professional fees; printing and mailing costs; and other miscellaneous
expenses. These costs, which are not expected to be material to the
transaction and are preliminarily expected to be approximately $60 million,
have not been included in the unaudited pro forma combined financial
statements.
 
NOTE C: RESTRUCTURING CHARGES
   
  Ahmanson's management estimates that approximately $450 million of costs
related to premises, severance and restructuring charges and other direct
acquisition costs would be incurred in connection with the Combination; these
estimates of costs are not yet based on sufficient factual data so as to be
included as adjustments to the unaudited pro forma combined financial
statements and are subject to change as additional information becomes
available. Of this amount, approximately $375 million of costs relate to GWF's
premises, severance and operations and would affect the final amount of
goodwill as of the consummation of the Combination, which goodwill will be
amortized as described in Note G below. The remaining estimated amount of
approximately $75 million of costs relates to Ahmanson's premises and
operations, as well as all costs relating to systems conversions and other
indirect integration costs, and will be expensed upon consummation of the
Combination or as incurred. With respect to timing, it has been assumed that
the integration would be complete and that the costs referred to above would
be incurred not later than 15 months after the closing of the Combination.
    
  Ahmanson's estimate of restructuring charges is in the range of
restructuring charges announced in connection with other similar transactions
and is based on the assumption that Ahmanson's experience in integrating GWF's
organization and operations will be similar to comparable transactions in the
past.
 
                                      76
<PAGE>
 
                               AHMANSON AND GWF
 
         NOTES TO PRO FORMA COMBINED FINANCIAL STATEMENTS--(CONTINUED)
                                  (UNAUDITED)
 
 
NOTE D: ALLOCATION OF PURCHASE PRICE
 
  Certain matters are still pending that would have an effect on the ultimate
allocation of the purchase price. Accordingly, the allocation of the purchase
price has not been finalized and the portion of the purchase price allocated
to fair value adjustments, goodwill and the identifiable intangibles
(discussed below) is subject to change.
 
  Subject to the foregoing, the purchase price has been allocated as described
in the table below:
 
<TABLE>   
<CAPTION>
                                                                  (IN MILLIONS)
      <S>                                                         <C>
      Net assets applicable to GWF's Common Stock at March 31,
       1997......................................................    $2,420
      Increase to GWF's net asset value at March 31, 1997 for
       core deposit intangibles (see Note H)(1)..................       253
      Lock-up Fee, net of tax effect.............................      (117)
      Elimination of GWF's existing goodwill and identifiable
       intangibles, net of applicable income tax effects(2)......      (166)
                                                                     ------
        Total preliminary allocation of purchase price...........     2,390
      Goodwill due to the Combination............................     4,121
                                                                     ------
        Total purchase price.....................................    $6,511
                                                                     ======
</TABLE>    
- --------
(1) Amounts are net of applicable income tax effects, using an estimated
    marginal tax rate of 40.0%.
(2) Assumes that GWF's existing goodwill and core deposit intangibles are
    deductible for tax purposes.
   
NOTE E: CALCULATION OF GOODWILL ADJUSTMENT AND TOTAL GOODWILL DUE TO
COMBINATION     
 
<TABLE>   
<CAPTION>
                                                                   (IN MILLIONS)
      <S>                                                          <C>
      Purchase price..............................................    $ 6,511
      GWF total common stockholders' equity.......................     (2,420)
      Lock-up Fee, net of tax effect..............................        117
      Core deposit intangibles(1).................................       (253)
                                                                      -------
      Goodwill adjustment.........................................      3,955
      GWF existing goodwill(2)....................................        166
                                                                      -------
        Total goodwill due to Combination.........................    $ 4,121
                                                                      =======
</TABLE>    
- --------
(1) Amounts are net of applicable income tax effects, using an estimated
 marginal tax rate of 40.0%.
(2)Assumes that GWF's existing goodwill and core deposit intangibles are
 deductible for tax purposes.
 
  For purposes of the pro forma combined statement of financial condition, it
has been assumed that the net book value of GWF's assets (excluding intangible
assets) minus liabilities approximate fair value.
 
NOTE F: STOCKHOLDERS' EQUITY
   
  The purchase price of $6,511 million is reduced by GWF's common
stockholders' equity of $2,420 million. Assuming an Exchange Ratio of l.2 in
the Combination, Ahmanson would issue 1.2 shares of Ahmanson Common Stock in
exchange for each of the 134,324,810 outstanding shares of GWF Common Stock
(based on the number of shares outstanding as of March 31, 1997, reduced by
the 3,560,500 Shares of GWF Common Stock owned by Ahmanson at May 9, 1997. The
per share price of Ahmanson Common Stock on May 9, 1997     
 
                                      77
<PAGE>
 
                               AHMANSON AND GWF
 
         NOTES TO PRO FORMA COMBINED FINANCIAL STATEMENTS--(CONTINUED)
                                  (UNAUDITED)
   
was $39.375; total par value of new common stock of Ahmanson is $2 million.
The remaining $6,509 million represents $6,345 million of additional paid-in
capital and $164 million of cash purchases of GWF Common Stock. GWF 8.30%
Preferred Stock will be converted into New Ahmanson 8.30% Preferred Stock.
    
  Adjustments to stockholders' equity are as follows:
 
<TABLE>   
<CAPTION>
                                              PURCHASE      GWF
                                               PRICE   COMMON EQUITY ADJUSTMENT
                                              -------- ------------- ----------
                                                        (IN MILLIONS)
   <S>                                        <C>      <C>           <C>
   Common stock..............................  $    2     $  (138)    $  (136)
   Additional paid-in capital................   6,345        (677)      5,668
   Retained earnings.........................     --       (1,563)     (1,563)
   Other (net unrealized gains on available-
    for-sale securities).....................     --          (42)        (42)
                                               ------     -------     -------
     Total common stockholders' equity.......  $6,347     $(2,420)    $ 3,927
                                               ======     =======     =======
</TABLE>    
 
NOTE G: PURCHASE ACCOUNTING ADJUSTMENTS
 
  Adjustments are made to reflect the recording of intangibles as well as to
eliminate any intangible balances previously recorded by GWF in accordance
with the purchase method of accounting. It has been assumed based on
information in the GWF 1996 10-K that the Net Book Value of GWF's assets
(excluding intangible assets) minus liabilities approximates fair value.
Purchase accounting adjustments are based on the best available information
and are subject to update as additional information becomes available.
Purchase accounting adjustments would be booked on a gross basis with related
adjustments to Ahmanson's net deferred taxes as follows:
 
<TABLE>   
<CAPTION>
                                                     RELATED         RELATED
                                                    (INCREASE)      (INCREASE)
                                                   DECREASE TO     DECREASE TO
                                NET OF              NET INCOME      NET INCOME
                              APPLICABLE          FOR YEAR ENDED FOR THREE MONTHS
                             INCOME TAXES GROSS     12/31/96*     ENDED 3/31/97*
                             ------------ ------  -------------- ----------------
                                       (IN MILLIONS)
 
 
   <S>                       <C>          <C>     <C>            <C>
   Goodwill and
    identifiable
    intangibles of GWF.....     $ (166)   $ (277)      $(38)           $(9)
   Goodwill due to the
    Proposed Merger*.......      4,121     4,121        165             42
   Core deposit intangibles
    due to the Proposed
    Merger*................        253       422         42             11
                                ------    ------       ----            ---
                                 4,208     4,266        169             44
   Adjustment to Ahmanson
    net deferred taxes
    related to purchase
    accounting adjustments.        --        (58)        (5)            (1)
                                ------    ------       ----            ---
     Total.................     $4,208    $4,208       $164            $43
                                ======    ======       ====            ===
</TABLE>    
- --------
   
*  Goodwill due to the Combination is amortized on a straight-line basis over
   25 years. Core deposit intangibles due to the Combination are amortized on
   a straight-line basis over 10 years.     
   
  The incremental effect on net income of the purchase accounting adjustments
is estimated to be a net after-tax expense of approximately $164 million for
each of the five 12-month periods subsequent to the Combination. Amounts
exclude amortization of existing goodwill and identifiable intangibles of GWF.
    
                                      78
<PAGE>
 
                               AHMANSON AND GWF
 
         NOTES TO PRO FORMA COMBINED FINANCIAL STATEMENTS--(CONTINUED)
                                  (UNAUDITED)
 
 
NOTE H: OTHER LIABILITIES
 
  The merger agreement between WAMU and GWF contains provisions such that WAMU
would receive significant Lock-up Fees ($75 million, plus $20 million for
reimbursement of expenses, if the GWF/WAMU Merger Agreement is terminated
under certain circumstances and an additional $100 million if GWF enters into
or consummates another transaction within 18 months of such termination).
   
  Ahmanson has filed suit in the Delaware Chancery Court seeking, among other
things, to invalidate the provisions of the GWF/WAMU Merger Agreement
providing for Lock-up Fees in the event of Ahmanson's successful completion of
the Proposed Merger. To the extent Ahmanson is successful in such action, it
has stated an intention to return the amount of expenses thereby saved by the
Company by paying a pro rata portion of such savings to stockholders of GWF
for each share of GWF Common Stock converted in the Combination. The pro forma
combined financial statements reflect the payment of the $195 million in Lock-
up Fees to WAMU, net of tax. In the event Ahmanson is successful in its suit
and the amount of such Lock-up Fees is paid to the GWF stockholders, the
accompanying pro forma combined financial statements would reflect an
additional $78 million of goodwill.     
 
  Adjustments to other liabilities are as follows:
 
<TABLE>   
<CAPTION>
                                                                   (IN MILLIONS)
   <S>                                                             <C>
   Deferred tax liability from core deposit intangible............     $ 169
   Tax effect of eliminating GWF intangibles......................      (111)
   Lock-up fee, net of tax effect.................................       117
                                                                       -----
     Total adjustment to other liabilities........................     $ 175
                                                                       =====
</TABLE>    
 
                                      79
<PAGE>
 
                     DESCRIPTION OF AHMANSON CAPITAL STOCK
 
AHMANSON COMMON STOCK
   
  Ahmanson is currently authorized to issue up to 220,000,000 shares of
Ahmanson Common Stock. Prior to the consummation of the Offer, and subject to
receipt of the approval of holders of record of Ahmanson Common Stock sought
herein, the Ahmanson Charter will be amended to increase the number of
authorized shares of Ahmanson Common Stock to 350,000,000. As of March 31,
1997, there were 100,595,547 shares of Ahmanson Common Stock issued and
outstanding. Since 1995, Ahmanson has been engaged in stock repurchase
programs. For a description of these programs see "--Repurchases of Ahmanson
Common Stock".     
 
  Holders of shares of Ahmanson Common Stock are entitled to one vote per
share for each share held. Subject to the rights of holders of shares of the
Ahmanson Preferred Stock (as described below), holders of shares of Ahmanson
Common Stock are entitled to receive such dividends as may be declared by the
Board of Directors from funds legally available therefor and, in the event of
liquidation, from the net assets of Ahmanson available for distribution to
stockholders. Ahmanson may not declare any dividends on the Ahmanson Common
Stock (other than in shares of Ahmanson Common Stock) unless full preferential
amounts to which holders of Ahmanson Preferred Stock are entitled have been
paid or declared and set apart for payment upon all outstanding shares of
Ahmanson Preferred Stock. Ahmanson is also subject to certain contractual and
regulatory restrictions on the payment of dividends. See "--Certain Regulatory
Considerations".
   
  The holders of shares of Ahmanson Common Stock do not have preemptive rights
or preferential rights of subscription for any shares of Ahmanson Common Stock
or other securities of Ahmanson. Outstanding shares of Ahmanson Common Stock
are, and shares to be issued in the Combination will be, validly issued, fully
paid and nonassessable.     
   
  The Ahmanson Common Stock is listed on the NYSE and the PSE. Application
will be made to list the shares of Ahmanson Common Stock to be issued in the
Combination on the NYSE and the PSE.     
 
AMENDMENTS TO THE AHMANSON CHARTER
 
  If the Ahmanson Charter Amendment is approved, the Ahmanson Charter would be
amended in accordance with the DGCL to provide (a) that the number of shares
of authorized Common Stock of the combined company shall be increased to
350,000,000, and (b) for the New Ahmanson 8.30% Preferred Stock.
 
  Uncommitted authorized but unissued shares of Ahmanson Common Stock of the
combined company would be able to be issued from time to time to such persons
and for such considerations as the Board of Directors of the combined company
may determine and holders of the then outstanding shares of Ahmanson Common
Stock may or may not be given the opportunity to vote thereon, depending upon
the nature of any such transactions, applicable law, the rules and policies of
the NYSE and the judgment of the Board of Directors of the combined company
regarding the submission thereof to stockholders of the combined company.
 
  First Chicago Trust Company of New York is the transfer agent and registrar
for the Ahmanson Common Stock.
 
REPURCHASES OF AHMANSON COMMON STOCK
   
  In the fourth quarter of 1995, Ahmanson announced its first stock purchase
program during which Ahmanson purchased $250 million of its common stock. In
the second quarter of 1996, the first program was completed and Ahmanson began
its second stock purchase program for $150 million. The completion of the
second program and the commencement of the third stock purchase program for
$250 million occurred in the fourth quarter of 1996. During the fourth quarter
of 1996 Ahmanson purchased a total of 4 million shares at an average price per
share of $31.86 and during the first quarter of 1997 Ahmanson purchased a
total of 2.2 million     
 
                                      80
<PAGE>
 
   
shares at an average price per share of $35.06. Of the $250 million authorized
for Ahmanson's third stock purchase program, $131 million remained at March
31, 1997.     
   
  As of March 31, 1997, Ahmanson had purchased 19.2 million common shares, or
16% of the shares outstanding as of September 30, 1995, at an average price of
$27.11 under the three programs. In addition, in September of 1996 Ahmanson
redeemed at par the entire $175 million of its 9.60% Preferred Stock, Series
B, and in December of 1996 issued $150 million of 8.36% Capital Securities,
Series A, which are designated as "Company-Obligated Mandatorily Redeemable
Capital Securities, Series A".     
 
AHMANSON PREFERRED STOCK
 
  The Ahmanson Charter provides that Ahmanson is authorized to issue
10,000,000 shares of Ahmanson Preferred Stock. The Ahmanson Preferred Stock
may be issued from time to time in one or more series and the Ahmanson Board
is authorized to fix the voting rights, designations, powers, preferences and
the relative, participating, optional or other rights, if any, and the
qualifications, limitations or restrictions thereof, of any wholly unissued
series of Ahmanson Preferred Stock, and to fix the number of shares
constituting such series, and to increase or decrease the number of shares of
any such series, all without further action by the holders of Ahmanson Common
Stock.
 
  Because Ahmanson is a holding company, its rights, the rights of its
creditors and of its stockholders, including the holders of the shares of the
Ahmanson Preferred Stock, to participate in any distribution of the assets of
any subsidiary upon the latter's liquidation or recapitalization will be
subject to the prior claims of the subsidiary's creditors, except to the
extent that Ahmanson may itself be a creditor with recognized claims against
the subsidiary. The principal source of Ahmanson's revenues are dividends
received from its banking and other subsidiaries. Various statutory provisions
limit the amount of dividends its subsidiaries may pay without regulatory
approval, and various regulations can also restrict the payment of dividends.
In addition, federal statutes limit the ability of certain subsidiaries to
make loans to Ahmanson. See "--Certain Regulatory Considerations".
 
  The following is a brief description of certain terms of the outstanding
series of Ahmanson Preferred Stock. This description does not purport to be
complete and is qualified in its entirety by reference to the Ahmanson
Charter, including the certificate of designations with respect to each such
series.
 
  The shares of Ahmanson Preferred Stock currently outstanding have preference
over Ahmanson Common Stock with respect to the payment of dividends and the
distribution of assets in the event of liquidation, winding up or dissolution
of Ahmanson. Each outstanding series ranks on a parity with the other as to
dividends and the distribution of assets upon liquidation, winding up or
dissolution.
 
  Generally, the holders of each series of Ahmanson Preferred Stock have no
voting rights. However, if the equivalent of six quarterly dividends payable
on a series of Ahmanson Preferred Stock are in default, the number of
directors of Ahmanson will be increased by two and the holders of such
outstanding series of Ahmanson Preferred Stock together with the holders of
shares of every other series of Ahmanson Preferred Stock similarly entitled to
vote for the election of two directors, acting together as a single class,
will be entitled to elect two of the authorized number of members of the
Ahmanson Board at the next annual meeting and at each subsequent annual
meeting of stockholders, to serve until all dividends accumulated have been
fully paid for four consecutive quarterly dividend periods, including the last
preceding quarterly dividend period. Ahmanson Depositary Shares representing
each series of Ahmanson Preferred Stock are listed on the NYSE.
 
  Ahmanson Series C Preferred Stock. As of December 31, 1996, there were
issued and outstanding 780,000 shares of Ahmanson 8.40% Preferred Stock,
Series C, liquidation preference $250 per share (the "Ahmanson Series C
Preferred Stock"), represented by 7,800,000 depositary shares, each
representing a one-tenth interest in a share of Ahmanson Series C Preferred
Stock. The Ahmanson Series C Preferred Stock is redeemable at the
 
                                      81
<PAGE>
 
option of Ahmanson, in whole or in part, on and after March 1, 1998 at a price
of $250 per share (equivalent to $25 per depositary share) plus accrued and
unpaid dividends to the redemption date.
 
  Dividends on the Ahmanson Series C Preferred Stock of $21.00 per share
(8.40% annualized rate) are cumulative and paid quarterly on the first day of
March, June, September and December (equivalent to $2.10 per annum per
depositary share).
 
  Ahmanson Series D Preferred Stock. As of December 31, 1996, there were
issued and outstanding 575,000 shares of 6% Cumulative Convertible Preferred
Stock, Series D, liquidation preference $500 per share (the "Ahmanson Series D
Preferred Stock"), evidenced by 5,750,000 depositary shares, each representing
a one-tenth interest in a share of Ahmanson Series D Preferred Stock. The
Ahmanson Series D Preferred Stock is redeemable at the option of Ahmanson, in
whole or in part, on and after September 1, 1998 at a price commencing at $515
per share and declining to $500 per share on September 1, 2003 and thereafter,
plus accrued and unpaid dividends to the redemption date.
 
  Dividends on the Ahmanson Series D Preferred Stock of $30 per share (6%
annualized rate) are cumulative and are paid quarterly on the first day of
March, June, September and December (equivalent to $3 per annum per depositary
share).
 
  The Ahmanson Series D Preferred Stock is convertible into Ahmanson Common
Stock, at the option of its holders, at a conversion rate of approximately
20.5465 shares of Ahmanson Common Stock per share of Ahmanson Series D
Preferred Stock (equivalent to a conversion rate of 2.05465 shares of Ahmanson
Common Stock per depositary share) (subject to adjustments upon the occurrence
of certain events).
 
NEW AHMANSON 8.30% PREFERRED STOCK
   
  The summary of terms of the New Ahmanson 8.30% Preferred Stock contained
herein does not purport to be complete and is subject to, and qualified in its
entirety by, the provisions of the Ahmanson Charter, as amended through the
Expiration Date, and the provisions of the Preferred Stock Deposit Agreement.
       
  If the Merger is consummated, each share of GWF 8.30% Preferred Stock would
be converted into one share of New Ahmanson 8.30% Preferred Stock. The New
Ahmanson 8.30% Preferred Stock will be substantially the same as the GWF 8.30%
Preferred Stock.     
 
  Rank. The New Ahmanson 8.30% Preferred Stock will rank on a parity as to
payment of dividends and distribution of assets upon dissolution, liquidation
or winding up of Ahmanson with each other currently outstanding series of
Ahmanson Preferred Stock. See "--Ahmanson Preferred Stock". The New Ahmanson
8.30% Preferred Stock will rank prior to the Ahmanson Common Stock with
respect to the payment of dividends and distribution of assets upon
dissolution, liquidation or winding up of Ahmanson.
 
  Dividends. Holders of shares of the New Ahmanson 8.30% Preferred Stock will
be entitled to receive, when, as and if declared by the Ahmanson Board out of
funds of Ahmanson legally available for payment, cash dividends at the rate of
8.30% per annum (equivalent to $2.075 per New Ahmanson Depositary Share).
Dividends on the New Ahmanson 8.30% Preferred Stock will be payable quarterly
on February 1, May 1, August 1 and November 1 of each year, commencing upon
consummation of the Proposed Merger, at such annual rate. Each dividend will
be payable to holders of record as they appear on the stock books of Ahmanson
(or, if applicable, the records of the Preferred Stock Depositary) on such
record dates, not exceeding 45 days preceding the payment dates thereof, as
shall be fixed by the Ahmanson Board. Dividends will be cumulative from the
date of original issue. Dividends payable on the New Ahmanson 8.30% Preferred
Stock for any period greater or less than a full dividend period shall be
computed on the basis of a 360-day year consisting of twelve 30-day months.
Dividends payable on the New Ahmanson 8.30% Preferred Stock for each full
dividend period shall be computed by dividing the annual dividend rate by
four.
 
  Redemption. Shares of New Ahmanson 8.30% Preferred Stock will not be
redeemable prior to November 1, 1997. The shares of New Ahmanson 8.30%
Preferred Stock will be redeemable at the option of Ahmanson, in whole or in
part, at any time or from time to time, on or after November 1, 1997, on not
less than 30 nor more
 
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<PAGE>
 
than 60 days' notice by mail, at a redemption price of $250 per share
(equivalent to $25 per New Ahmanson Depositary Share) plus accrued and unpaid
dividends to the redemption date.
 
  The New Ahmanson 8.30% Preferred Stock will not be subject to any sinking
fund or other obligation of Ahmanson to redeem or retire the New Ahmanson
8.30% Preferred Stock.
 
  Liquidation Rights. In the event of any voluntary or involuntary
liquidation, dissolution or winding up of Ahmanson, the holders of shares of
New Ahmanson 8.30% Preferred Stock are entitled to receive out of assets of
Ahmanson available for distribution to stockholders, before any distribution
of assets is made to holders of Ahmanson Common Stock or of any other shares
of stock of Ahmanson ranking as to such a distribution junior to the shares of
New Ahmanson 8.30% Preferred Stock, liquidating distributions in the amount of
$250 per share (equivalent to $25 per New Ahmanson Depositary Share) plus
accrued and unpaid dividends. After payment of such liquidating distributions,
the holders of shares of New Ahmanson 8.30% Preferred Stock will not be
entitled to any further participation in any distribution of assets by
Ahmanson.
 
  Voting Rights. Except as indicated below or except as expressly required by
applicable law, the holders of the New Ahmanson 8.30% Preferred Stock will not
be entitled to vote for any purpose.
 
  If the equivalent of six quarterly dividends payable on the New Ahmanson
8.30% Preferred Stock are in arrears, the number of directors of Ahmanson will
be increased by two and the holders of New Ahmanson 8.30% Preferred Stock,
voting separately as a class together with any other series of Ahmanson
Preferred Stock ranking on a parity with the New Ahmanson 8.30% Preferred
Stock as to dividends and distributions of assets and which by its terms
provides for similar voting rights (the "Other Ahmanson Preferred Stock"),
will be entitled to elect two directors to fill such vacancies. Such right to
elect two additional directors shall continue until all dividends in arrears
have been paid or declared and set apart for payment. Each director elected by
the holders of shares of the New Ahmanson 8.30% Preferred Stock and any other
class of Ahmanson Preferred Stock shall continue to serve as such director for
the full term for which he shall have been elected, notwithstanding that prior
to the end of such term such default shall cease to exist.
 
  So long as any shares of the New Ahmanson 8.30% Preferred Stock remain
outstanding, the consent or the affirmative vote of the holders of at least 66
2/3% of the vote entitled to be cast with respect to the then outstanding
shares of such series of the New Ahmanson 8.30% Preferred Stock together with
any Other Ahmanson Preferred Stock, voting as one class, either expressed in
writing or at a meeting called for that purpose, will be necessary (i) to
permit, effect or validate the authorization, or any increase in the
authorized amount, of any class or series of shares of Ahmanson ranking prior
to the New Ahmanson 8.30% Preferred Stock as to dividends, voting or upon
distribution of assets and (ii) to repeal, amend or otherwise change any of
the provisions applicable to the New Ahmanson 8.30% Preferred Stock in any
manner which adversely affects the powers, preferences, voting power or other
rights or privileges of the New Ahmanson 8.30% Preferred Stock. In case the
New Ahmanson 8.30% Preferred Stock would be so affected by any such action
referred to in clause (ii) above in a different manner than one or more series
of the Other Ahmanson Preferred Stock then outstanding, the holders of shares
of the New Ahmanson 8.30% Preferred Stock, together with any series of the
Other Ahmanson Preferred Stock which will be similarly affected, will be
entitled to vote as a class, and Ahmanson will not take such action without
the consent or affirmative vote of the holders of at least 66 2/3% of the
total number of votes entitled to be cast with respect to each such series of
the New Ahmanson 8.30% Preferred Stock and the Other Ahmanson Preferred Stock
then outstanding.
 
  With respect to any matter as to which the New Ahmanson 8.30% Preferred
Stock is entitled to vote, holders of the New Ahmanson 8.30% Preferred Stock
and any Other Ahmanson Preferred Stock will be entitled to cast the number of
votes assigned to the outstanding shares of New Ahmanson 8.30% Preferred
Stock. As a result of the provisions described in the preceding paragraph
requiring the holders of shares of the New Ahmanson 8.30% Preferred Stock to
vote together as a class with the holders of shares of one or more series of
Other Ahmanson Preferred Stock, it is possible that the holders of such shares
of Other Ahmanson Preferred Stock could approve action that would adversely
affect New Ahmanson 8.30% Preferred Stock, including the creation of a class
of
 
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<PAGE>
 
capital stock ranking prior to such series of New Ahmanson 8.30% Preferred
Stock as to dividends, voting or distributions of assets.
 
  Conversion Rights. The New Ahmanson 8.30% Preferred Stock is not convertible
into shares of any other class or series of Ahmanson Capital Stock.
 
NEW AHMANSON DEPOSITARY SHARES
   
  At the effective time of the Merger, Ahmanson would assume the obligations
of GWF under the Preferred Stock Deposit Agreement and will instruct the
Preferred Stock Depositary to treat the shares of New Ahmanson 8.30% Preferred
Stock as new deposited securities under the Preferred Stock Deposit Agreement.
In accordance with the terms of the Preferred Stock Deposit Agreement, the GWF
Depositary Shares then outstanding shall thereafter represent the shares of
New Ahmanson 8.30% Preferred Stock. Ahmanson will request that the Preferred
Stock Depositary call for surrender of all outstanding GWF Depositary Receipts
to be exchanged for New Ahmanson Depositary Receipts specifically describing
the New Ahmanson 8.30% Preferred Stock. The New Ahmanson Depositary Receipts
to be issued in exchange for the GWF Depositary Receipts will evidence the New
Ahmanson Depositary Shares.     
 
  Each New Ahmanson Depositary Share will represent a one-tenth interest in a
share of New Ahmanson 8.30% Preferred Stock. Ahmanson has agreed to use its
best efforts to list the New Ahmanson Depositary Shares on the NYSE, subject
to official notice of issuance. The New Ahmanson Depositary Shares will be
freely transferable under the Securities Act.
 
  Subject to the terms of the Preferred Stock Deposit Agreement, each owner of
a New Ahmanson Depositary Share will be entitled through the Preferred Stock
Depositary, in proportion to the one-tenth interest in a share of New Ahmanson
8.30% Preferred Stock underlying such New Ahmanson Depositary Share, to all
rights and preferences of a share of New Ahmanson 8.30% Preferred Stock
(including, voting, redemption and liquidation rights). Because each share of
New Ahmanson 8.30% Preferred Stock entitles the holder thereof to one vote on
matters on which the New Ahmanson 8.30% Preferred Stock is entitled to vote,
each related New Ahmanson Depositary Share, will, in effect, entitle the
holder thereof to one-tenth of a vote thereon, rather than one full vote. See
"--New Ahmanson 8.30% Preferred Stock--Voting Rights".
 
  Pending the preparation of definitive, engraved New Ahmanson Depositary
Receipts, the Preferred Stock Depositary may, upon the written order of
Ahmanson, issue temporary New Ahmanson Depositary Receipts substantially
identical to (and entitling the holders thereof to all the rights pertaining
to) the definitive form. Definitive New Ahmanson Depositary Receipts will be
prepared thereafter without unreasonable delay, and temporary New Ahmanson
Depositary Receipts will be exchangeable for definitive New Ahmanson
Depositary Receipts at Ahmanson's expense.
 
  Dividends and Other Distributions. The Preferred Stock Depositary will
distribute all cash dividends or other cash distributions received in respect
of the New Ahmanson 8.30% Preferred Stock to the record holders of New
Ahmanson Depositary Receipts in proportion, insofar as practicable, to the
respective numbers of New Ahmanson Depositary Shares evidenced by the New
Ahmanson Depositary Receipts held by such holders on the relevant record date.
The Preferred Stock Depositary shall distribute only such amount, however, as
can be distributed without attributing to any holder of New Ahmanson
Depositary Receipts a fraction of one cent, and any balance not so distributed
shall be added to and treated as part of the next sum received by the
Preferred Stock Depositary for distribution to record holders of New Ahmanson
Depositary Receipts then outstanding.
   
  In the event of a distribution other than in cash, the Preferred Stock
Depositary will distribute such amounts of the securities or property received
by it as are, as nearly as practicable, in proportion to the respective
numbers of New Ahmanson Depositary Shares evidenced by the New Ahmanson
Depositary Receipts held by such holders on the relevant record date, unless
the Preferred Stock Depositary determines that it is not feasible to make such
distribution, in which case the Preferred Stock Depositary may, with the
approval of Ahmanson, adopt such method as it deems equitable and practicable
for the purpose of effecting such distribution, including the sale of such
securities or property.     
 
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<PAGE>
 
  The Preferred Stock Deposit Agreement also contains provisions relating to
the manner in which any subscription or similar rights offered by Ahmanson to
holders of the New Ahmanson 8.30% Preferred Stock shall be made available to
holders of the related New Ahmanson Depositary Receipts.
 
  The amounts distributed in all of the foregoing cases will be reduced by any
amounts required to be withheld by Ahmanson or the Depositary on account of
taxes and governmental charges.
 
  Redemption of New Ahmanson Depositary Shares. If shares of New Ahmanson
8.30% Preferred Stock represented by New Ahmanson Depositary Shares are
redeemed, the New Ahmanson Depositary Shares will be redeemed from the
proceeds received by the Preferred Stock Depositary resulting from the
redemption, in whole or in part, of the New Ahmanson 8.30% Preferred Stock
held by the Preferred Stock Depositary. The Preferred Stock Depositary shall
mail notice of redemption not less than 30 and not more than 60 days prior to
the date fixed for redemption to the record holders of the New Ahmanson
Depositary Receipts evidencing the New Ahmanson Depositary Shares to be so
redeemed at their respective addresses appearing in the Preferred Stock
Depositary's books. The redemption price per New Ahmanson Depositary Share
will be equal to the applicable fraction of the redemption price per share
payable with respect to such series of the New Ahmanson 8.30% Preferred Stock
plus all money and other property, if any, payable with respect to such New
Ahmanson Depositary Share, including all amounts payable by Ahmanson in
respect of any accumulated but unpaid dividends. Whenever Ahmanson redeems
shares of New Ahmanson 8.30% Preferred Stock held by a Preferred Stock
Depositary, the Preferred Stock Depositary will redeem as of the same
redemption date the number of New Ahmanson Depositary Shares representing
shares of the New Ahmanson 8.30% Preferred Stock so redeemed. If less than all
the New Depositary Shares are to be redeemed, the New Ahmanson Depositary
Shares to be redeemed will be selected by lot or pro rata (subject to rounding
to avoid fractions of New Ahmanson Depositary Shares) as may be determined by
the Preferred Stock Depositary.
 
  After the date fixed for redemption, the New Ahmanson Depositary Shares so
called for redemption will no longer be deemed to be outstanding and all
rights of the holders of New Ahmanson Depositary Receipts evidencing such New
Ahmanson Depositary Shares will cease, except the right to receive the moneys
payable upon such redemption and any money or other property to which such
holders were entitled upon such redemption upon surrender to the Preferred
Stock Depositary of the New Ahmanson Depositary Receipts evidencing such New
Ahmanson Depositary Shares.
 
  Voting the New Ahmanson 8.30% Preferred Stock. Upon receipt of notice of any
meeting or action to be taken by written consent at or as to which the holders
of the New Ahmanson 8.30% Preferred Stock are entitled to vote or consent, the
Preferred Stock Depositary will mail the information contained in such notice
of meeting or action to the record holders of the New Ahmanson Depositary
Receipts evidencing the New Ahmanson Depositary Shares. Each record holder of
such New Ahmanson Depositary Receipts on the record date (which will be the
same date as the record date for the New Ahmanson 8.30% Preferred Stock) will
be entitled to instruct the Preferred Stock Depositary as to the exercise of
the voting rights or the giving or refusal of consent, as the case may be,
pertaining to the number of shares of the New Ahmanson 8.30% Preferred Stock
represented by the New Ahmanson Depositary Shares evidenced by such holder's
New Ahmanson Depositary Receipts. The Preferred Stock Depositary will
endeavor, insofar as practicable, to vote, or give or withhold consent with
respect to, the maximum number of whole shares of the New Ahmanson 8.30%
Preferred Stock represented by all New Ahmanson Depositary Shares as to which
any particular voting or consent instructions are received, and Ahmanson will
agree to take all action which may be deemed necessary by the Preferred Stock
Depositary in order to enable the Preferred Stock Depositary to do so. The
Preferred Stock Depositary will abstain from voting, or giving consents with
respect to, shares of the New Ahmanson 8.30% Preferred Stock to the extent it
does not receive specific instructions from the holders of New Ahmanson
Receipts evidencing New Ahmanson Depositary Shares.
 
  Amendment and Termination of the Preferred Stock Deposit Agreement. The form
of New Ahmanson Depositary Receipts evidencing the New Ahmanson Depositary
Shares and any provision of the Preferred Stock Deposit Agreement may at any
time and from time to time be amended by agreement between Ahmanson and
 
                                      85
<PAGE>
 
the Preferred Stock Depositary in any respect which they may deem necessary or
desirable. However, any amendment which imposes or increases any fees, taxes
or charges upon holders of New Ahmanson Depositary Shares or New Ahmanson
Depositary Receipts or which materially and adversely alters the existing
rights of such holders will not be effective unless such amendment has been
approved by the record holders of New Ahmanson Depositary Receipts evidencing
at least a majority of such New Ahmanson Depositary Shares then outstanding.
Notwithstanding the foregoing, no such amendment may impair the right of any
holder of New Ahmanson Depositary Shares or New Ahmanson Depositary Receipts
to receive any moneys or other property to which such holder may be entitled
under the terms of such New Ahmanson Depositary Receipts or the related
Preferred Stock Deposit Agreement at the times and in the manner and amount
provided for therein. The Preferred Stock Deposit Agreement may be terminated
by Ahmanson or the Preferred Stock Depositary only after (i) all outstanding
New Ahmanson Depositary Shares relating thereto have been redeemed and any
accumulated and unpaid dividends on the New Ahmanson 8.30% Preferred Stock,
together with all other moneys and property, if any, to which holders of the
related New Ahmanson Depositary Shares are entitled under the terms of such
New Ahmanson Depositary Shares or the Preferred Stock Deposit Agreement, have
been paid or distributed as provided in the Preferred Stock Deposit Agreement
or provision therefor has been duly made or (ii) there has been a final
distribution in respect of the New Ahmanson 8.30% Preferred Stock in
connection with any liquidation, dissolution or winding up of Ahmanson and
such distribution has been distributed to the holders of the New Ahmanson
Depositary Receipts.
 
  Miscellaneous. The Preferred Stock Depositary will forward to record holders
of New Ahmanson Depositary Receipts, at their respective addresses appearing
in the Preferred Stock Depositary's books, all reports and communications from
Ahmanson which are delivered to the Preferred Stock Depositary and which
Ahmanson is required to furnish to holders of such New Ahmanson Depositary
Receipts.
 
  The Preferred Stock Deposit Agreement contains provisions relating to
adjustments in the fraction of a share of New Ahmanson 8.30% Preferred Stock
represented by New Ahmanson Depositary Shares in the event of a change in par
or stated value, split-up, combination or other reclassification of the New
Ahmanson 8.30% Preferred Stock or upon any recapitalization, merger or sale of
substantially all of the assets of Ahmanson.
 
  Neither the Preferred Stock Depositary nor any of its agents nor any
registrar nor Ahmanson will be (i) liable if it is prevented or delayed by law
or any circumstance beyond its control in performing its obligations under the
Preferred Stock Deposit Agreement, (ii) subject to any liability under the
Preferred Stock Deposit Agreement to holders of New Ahmanson Depositary
Receipts other than for the relevant party's gross negligence or willful
misconduct, or (iii) obligated to prosecute or defend any legal proceeding in
respect of any New Ahmanson Depositary Receipts, New Ahmanson Depositary
Shares or the New Ahmanson 8.30% Preferred Stock unless satisfactory indemnity
is furnished. They may rely upon written advice of counsel or accountants, or
information provided by holders of New Ahmanson Depositary Shares or other
persons in good faith believed to be competent and on documents reasonably
believed to be genuine.
 
  Charges of the Preferred Stock Depositary. Ahmanson will pay all transfer
and other taxes and governmental charges arising solely from the existence of
the depositary arrangements. Ahmanson will pay charges of the Preferred Stock
Depositary in connection with the initial deposit of the related Ahmanson
Preferred Stock and the initial issuance of the New Ahmanson Depositary
Receipts evidencing the New Ahmanson Depositary Shares, any redemption of the
New Ahmanson 8.30% Preferred Stock and any withdrawals of New Ahmanson 8.30%
Preferred Stock by the holders of New Ahmanson Depositary Shares. Holders of
New Ahmanson Depositary Shares will pay other transfer and other taxes and
governmental charges and such other charges as are expressly provided in the
Preferred Stock Deposit Agreement to be for their accounts.
 
  Resignation or Removal of the Preferred Stock Depositary. The Preferred
Stock Depositary may resign at any time by delivering to Ahmanson notice of
its election to do so, and Ahmanson may at any time remove the Preferred Stock
Depositary, any such resignation or removal to take effect upon the
appointment of a successor
 
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<PAGE>
 
depositary and its acceptance of such appointment. Such successor depositary
must be appointed within 60 days after delivery of the notice of resignation
or removal.
 
CERTAIN REGULATORY CONSIDERATIONS
 
  The following discussion addresses in general terms the regulatory framework
applicable to savings and loan holding companies and their subsidiaries, and
provides certain information relevant to Ahmanson. Regulation of financial
institutions such as Ahmanson and its subsidiaries is intended primarily for
the protection of depositors, the deposit insurance funds of the FDIC and the
banking system as a whole, and generally is not intended for the protection of
stockholders or other investors.
 
  General. Ahmanson is a savings and loan holding company and, as such, is
subject to the OTS's regulations, examination, supervision and reporting
requirements. Home Savings is a federal savings bank and a member of the FHLB
System, and its deposits are insured by the FDIC. It is subject to examination
and supervision by the OTS and the FDIC and to regulations governing such
matters as capital standards, mergers, establishment and closing of branch
offices, subsidiary investments and activities, and general investment
authority.
 
  The descriptions of the statutes and regulations that are applicable to
Ahmanson and the effects thereof that are set forth below and elsewhere in
this document do not purport to be a complete description of such statutes and
regulations and their effects on Ahmanson or to identify every statute and
regulation that may apply to Ahmanson.
 
  Savings and Loan Holding Company Regulations. Subject to certain limited
exceptions, control of a savings association or a savings and loan holding
company may only be obtained with the approval (or in the case of an
acquisition of control by an individual, the absence of disapproval) of the
OTS, after a public comment and application review process. Any company
acquiring control of a savings association becomes a savings and loan holding
company, must register and file periodic reports with the OTS, and is subject
to OTS examination.
 
  Affiliate and Insider Transactions. Savings associations are subject to
affiliate and insider transaction rules under Section 11 of the Home Owner's
Loan Act; including those applicable to member banks of the Federal Reserve
System set forth in Sections 23A, 23B, 22(g) and 22(h) of the Federal Reserve
Act. These provisions, among other things, prohibit or limit a savings
association from extending credit to, or entering into certain transactions
with, its affiliates (which generally include holding companies such as
Ahmanson and any company under common control with the savings association)
and principal stockholders, directors and executive officers of the savings
association and its affiliates.
 
  Limitations on Acquisitions. Ahmanson is generally prohibited, either
directly or indirectly, from acquiring control of any savings association or
savings and loan holding company absent prior approval by the OTS and from
acquiring more than 5% of any class of voting stock of any savings association
or savings and loan holding company that is not a subsidiary of Ahmanson.
 
  Payment of Dividends. Ahmanson's principal sources of funds are cash
dividends paid to it by Home Savings and other subsidiaries, investment income
and borrowings. There are restrictions on the ability of Home Savings to pay
dividends to Ahmanson. Savings association subsidiaries of savings and loan
holding companies, such as Home Savings, must notify the OTS of their intent
to declare dividends at least 30 days before declaration. The OTS has the
authority to preclude those associates from declaring a dividend.
 
  OTS regulations impose limitations upon certain "capital distributions" by
savings associations, including dividends. The regulations establish a three-
tiered system of regulation, with the greatest flexibility being afforded to
institutions that meet or exceed the fully phased-in capital requirements.
 
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<PAGE>
 
   
  A savings institution that has capital immediately prior to, and on a pro
forma basis after giving effect to, a proposed capital distribution that is at
least equal to its fully phased-in capital requirements is considered a Tier I
institution ("Tier I Institution"). At March 31, 1997 Home Savings was a Tier
I Institution. A Tier I Institution may, without the approval of but with
prior notice to the OTS, make capital distributions during a calendar year up
to the greater of (1) 100% of its net income to date during the calendar year
plus the amount that would reduce the savings institution's "surplus capital
ratio" (the excess over its fully phased-in risk-based capital requirement) to
one-half of its surplus capital ratio at the beginning of the calendar year or
(2) 75% of the institution's net income over the most recent four quarter
period. Any additional capital distributions would require prior regulatory
approval. The OTS retains discretion to subject Tier I Institutions to the
more stringent capital distribution rules applicable to institutions with less
capital if the OTS determines that the institution is in need of more than
normal supervision and has provided the institution with notice to that
effect. The OTS also retains the authority to prohibit any capital
distribution otherwise authorized under the regulations if the OTS determines
that the capital distribution would constitute an unsafe or unsound practice.
    
  Deposit Insurance. The FDIC administers two separate deposit insurance
funds: the BIF, which insures the deposits of institutions the deposits of
which were insured by the FDIC prior to the enactment of the Financial
Institutions Reform, Recovery, and Enforcement Act of 1989, and the SAIF,
which insures the deposits of institutions the deposits of which were insured
by the Federal Savings and Loan Insurance Corporation. Home Savings is a
member of the BIF and currently is obligated to pay deposit insurance
assessments ratably to the SAIF and the BIF based on 85% and 15% of total
deposits, respectively. These percentages are subject to change in the future
based on future events.
 
  The FDIC has established a risk-based system for setting deposit insurance
assessments. Under the risk-based assessment system, an institution's
insurance assessments vary depending upon the level of capital the institution
holds and the degree to which it is the subject of supervisory concern to the
FDIC. During the first three quarters of 1996, the assessment rate for SAIF
deposits varied from 0.23% of covered deposits for well-capitalized
institutions that were deemed to have no more than a few minor weaknesses, to
0.31% of covered deposits for less than adequately capitalized institutions
that posed substantial supervisory concern. The lowest assessment rate for BIF
deposits was $2,000 per institution per year. The assessment rate for both
SAIF and BIF deposits currently varies from zero to 0.27% of covered deposits.
Ahmanson paid $55.1 million in deposit insurance premiums to SAIF in 1996
compared to $79.9 million in 1995.
 
  Prior to enactment of the Deposit Insurance Funds Act of 1996 ("DIFA"), the
SAIF's three major obligations were to fund losses associated with the failure
of institutions with SAIF-insured deposits; to increase its reserves to 1.25%
of insured deposits over a reasonable period of time; and to make interest
payments on debt incurred through the Financing Corporation to provide funds
to the former Federal Savings and Loan Insurance Corporation ("FICO Debt").
The reserves of the SAIF were lower than the reserves of the BIF and the BIF
did not have an obligation to pay interest on the FICO Debt. Therefore,
premiums assessed on deposits insured by the SAIF were higher than premiums
assessed on deposits insured by the BIF. Such a premium structure provided
FDIC-insured institutions whose deposits were exclusively or primarily BIF-
insured (such as almost all commercial banks) certain competitive advantages
over institutions whose deposits were primarily SAIF-insured (such as Home
Savings).
 
  DIFA required FDIC-insured depository institutions with SAIF-insured
deposits to pay a special assessment designed to increase the SAIF's reserves
to the required 1.25% of insured deposits. The amount of the special
assessment imposed on Home Savings was $243.9 million. DIFA also altered the
obligation to make interest payments on the FICO Debt so that assessments to
collect the necessary funds are imposed separately from the deposit insurance
premium and are now assessed on BIF-insured deposits, although at a lower
rate, as well as on SAIF-insured deposits. Because the reserves of both the
SAIF and the BIF equal or exceed the required minimum amount and FICO Debt
assessments are collected separately from deposit insurance assessments,
deposit insurance premiums are currently assessed on SAIF-insured and BIF-
insured deposits according to the same schedule.
 
 
                                      88
<PAGE>
 
  The FDIC may initiate a proceeding to terminate an institution's deposit
insurance after a 30-day notice period if, among other things, the institution
is in an unsafe and unsound condition to continue operations. It is the policy
of the FDIC to deem an insured institution to be in an unsafe and unsound
condition if its ratio of Tier I capital to total assets is less than 2%. Tier
I capital is similar to core capital but includes certain investments in and
extensions of credit to subsidiaries engaged in activities not permitted for
national banks. In addition, the FDIC has the power to suspend temporarily a
savings association's insurance on deposits received after the issuance of a
suspension order in the event that the savings association has no tangible
capital.
 
  FICO Debt. Until December 31, 1999 or, if earlier, the date on which the
last savings association ceases to exist, the rate at which SAIF-insured
deposits are assessed with respect to FICO Debt interest payments will be five
times the rate at which BIF-insured deposits are assessed. Accordingly,
institutions whose deposits are exclusively or primarily BIF-insured (such as
almost all commercial banks) continue to have a competitive advantage over
institutions whose deposits are primarily SAIF-insured (such as Home Savings)
although the extent of the advantage is less than the deposit insurance
premium advantage which existed prior to the enactment of DIFA.
 
  Classification of Assets. Federal regulations require savings associations
to review their assets on a regular basis and to classify them as
"substandard," "doubtful" or "loss" if warranted. Adequate valuation
allowances for loan losses are required for assets classified as substandard
or doubtful. If an asset is classified as loss, the institution must either
establish a specific allowance for loss in the amount classified as loss or
charge off such amount. The institution's OTS District Director has the
authority to approve, disapprove or modify any asset classification and any
amounts established as allowances for loan losses.
 
  At present, certain general allowances may be included within regulatory
capital, while specific allowances may not. If an OTS examiner concludes that
additional assets should be classified or that the valuation allowances
established by the savings association are inadequate, the examiner may
determine, subject to internal review by the OTS, the need for and extent of
additional classification or any increase necessary in the savings
association's general or specific valuation allowances. An insured savings
association is also required to set aside adequate valuation allowances to the
extent that an affiliate possesses assets posing a risk to the institution and
to establish liabilities for off-balance sheet items, such as letters of
credit, when loss becomes probable and estimable.
   
  Capital Requirements. The OTS has adopted capital regulations ("Capital
Regulations") for savings associations which establish three capital
requirements--a core capital requirement, a tangible capital requirement and a
risk-based capital requirement. The capital standards contained in the Capital
Regulations generally must be no less stringent than the capital standards
applicable to national banks. The Capital Regulations require savings
associations to maintain core capital of at least 3% of adjusted total assets,
tangible capital of at least 1.5% of adjusted total assets, and total capital
(being the sum of Core Capital and Supplementary Capital) of at least 8% of
risk-weighted assets. In addition, institutions whose exposure to interest-
rate risk is deemed to be above normal will be required to deduct a portion of
such exposure in calculating their risk-based capital. The OTS may establish,
on a case by case basis, individual minimum capital requirements for savings
associations that vary from the requirements that would otherwise apply under
the Capital Regulations. The OTS has not established such individual minimum
capital requirements for Home Savings. Home Savings was in compliance with the
Capital Regulations at March 31, 1997. As of March 31, 1997, Home Savings'
core capital ratio was 5.76%. The Capital Regulations do not apply to
Ahmanson, on a consolidated or non-consolidated basis.     
 
  Core capital generally includes common stockholders' equity (including
retained earnings but excluding the net unrealized gain or loss on securities
available for sale), noncumulative perpetual preferred stock and related
surplus, and minority interests in the equity accounts of fully consolidated
subsidiaries. Intangible assets (other than a limited amount of mortgage
servicing rights and purchased credit card relationships) must be deducted
from core capital. Certain deferred tax assets also must be deducted.
 
 
                                      89
<PAGE>
 
  Tangible capital generally means core capital less any intangible assets
(other than a limited amount of mortgage servicing rights).
 
  Supplementary capital includes, among other things, certain types of
preferred stock and subordinated debt and, subject to certain limits. general
valuation loan and lease loss allowances. A savings association's
supplementary capital may be used to satisfy the risk-based capital
requirement only to the extent of that institution's core capital. Risk-
weighted assets are determined by multiplying each category of an
institution's assets, including off balance sheet equivalents, by a risk
weight assigned by the OTS based on the credit risk associated with those
assets, and adding the resulting amounts. The risk weight categories range
from zero percent for cash and government securities to 100% for assets that
do not quality for preferential risk weighting as determined by the OTS.
 
  The Capital Regulations treat asset sales with recourse as if they did not
occur, and generally require a savings association to maintain capital against
the entire amount of assets sold with recourse, even if recourse is for less
than the full amount. However, when assets are sold with recourse and the
amount of recourse is less than the risk-based capital requirement for such
assets, the assets are not included in risk-weighted assets and capital is
required to be maintained in an amount equal to such recourse amount. A
savings association's retention of the subordinated portion of a
senior/subordinated loan participation or package of loans is treated in the
same manner as an asset sale with recourse.
   
  The Capital Regulations contain special capital rules affecting savings
associations with certain kinds of subsidiaries. For purposes of determining
compliance with each of the capital standards, a savings association's
investments in and extensions of credit to subsidiaries engaged in activities
not permissible for a national bank are deducted from the savings
association's capital, net of reserves against such investment. Home Savings'
REI subsidiary is its only significant subsidiary engaged in activities not
permissible for a national bank. At March 31, 1997, Home Savings' investment
in its REI subsidiary aggregated $40.5 million, of which $39.3 million was
required to be deducted from Home Savings' capital.     
 
  Each bank regulatory agency and the OTS is required to review its capital
standards every two years to determine whether those standards require
sufficient capital to facilitate prompt corrective action to prevent or
minimize loss to the deposit insurance funds.
   
  Prompt Corrective Action. Under OTS regulations which implement the "prompt
corrective action" system established in the Federal Deposit Insurance Act
(the "FDIA"), a FDIC-insured savings association is well capitalized if its
ratio of total capital to risk-weighted assets is 10% or more, its ratio of
core capital to risk-weighted assets is 6% or more, its ratio of core capital
to total assets is 5% or more and it is not subject to any written agreement,
order or directive to meet a specified capital level. At March 31, 1997 Home
Savings met these standards. An institution which is not well capitalized is
"adequately capitalized" if its ratio of total capital to risk-weighted assets
is at least 8%, its ratio of core capital to risk-adjusted assets is at least
4% and its ratio of core capital to total assets is at least 4% (3% if the
institution receives the highest rating on the OTS's CAMEL rating system). Any
institution which is not adequately capitalized is undercapitalized,
significantly undercapitalized or critically undercapitalized, depending upon
its capital ratios.     
 
  A FDIC-insured savings association that is undercapitalized must submit a
capital restoration plan to the OTS. The plan may be approved only if the OTS
determines it is likely to succeed in restoring the institution's capital and
will not appreciably increase the risks to which the institution is exposed.
The association's performance under the plan must be guaranteed by any company
which controls the association, up to a maximum of 5% of the institution's
assets. The OTS may also require the association to take various actions
deemed appropriate to minimize potential losses to the deposit insurance fund.
A significantly undercapitalized association is subject to additional
sanctions and a critically undercapitalized association generally must be
placed in receivership or conservatorship.
 
  Enforcement and Penalties. The FDIA contains extensive enforcement
provisions applicable to all FDIC-insured depository institutions, including
savings associations and "institution-affiliated parties," which
 
                                      90
<PAGE>
 
includes, among others, directors, officers, employees, agents and controlling
stockholders of depository institutions, including holding companies such as
Ahmanson. An institution or institution-affiliated party may be subject to a
three tier penalty regime that ranges from a maximum penalty of $5,000 per day
for a simple violation to a maximum penalty of $1 million per day for certain
knowing violations including the failure to submit or submission of
incomplete, false or misleading reports. An institution-affiliated party may
also be subject to loss of voting rights with respect to the stock of
depository institutions.
 
  Whenever the OTS has reasonable cause to believe that the continuation by a
savings and loan holding company of any activity or of ownership or control of
any subsidiary not insured by the FDIC constitutes a serious risk to the
financial safety, soundness or stability of a subsidiary savings association
and is inconsistent with the sound operation of the savings association, the
OTS may order the holding company to terminate such activities or divest such
non-insured subsidiary. The OTS, without notice or opportunity for hearing,
may also (i) limit the payment of dividends by the savings association, (ii)
limit transactions between the savings association and its holding company or
other affiliates and (iii) limit any activity of the savings association which
creates a serious risk that the liabilities of the holding company and its
affiliates may be imposed upon the savings association.
 
  FDIA, as amended, requires the OTS to prescribe minimum operational and
managerial standards and standards for asset quality, earnings and stock
valuation for savings associations. Any savings association that fails to meet
the standards may be required to submit a plan for corrective action. If a
savings association fails to submit or implement an acceptable plan, the OTS
may require the association to take any action the OTS determines will best
carry out the purpose of prompt corrective action. The OTS and the bank
regulatory agencies have jointly published a regulation prescribing the
required safety and soundness standards. Home Savings believes that it is in
compliance with the regulation.
 
  Loans and Investments. Aggregate loans to a single borrower are limited to
specified percentages of a savings association's capital, depending upon the
existence and type of any collateral. Aggregate loans secured by non-
residential real property are limited to a specified percentage of capital.
 
  Savings associations generally may not invest directly in equity securities,
non-investment grade securities or real estate. Indirect investments in real
estate are permitted through subsidiaries subject to limitations based,
generally, on the institution's capital ratios. Investments in subsidiaries,
and the activities conducted through subsidiaries, are subject to regulatory
restrictions.
   
  FHLB System. The FHLBs provide a central credit facility for member
institutions. As a federal savings bank, Home Savings is required to be a
member of the FHLB System. Members of the FHLB System are required to own
capital stock in an FHLB at least equal to the greater of 1% of the member's
outstanding home mortgage loans and 5% of the member's advances from the FHLB.
At March 31, 1997 Home Savings' investment in FHLB stock was $427.5 million,
substantially all of which can not be withdrawn as long as Home Savings' real
estate loan portfolio remains at its current size.     
 
  Federal Reserve System. Home Savings is subject to various regulations
promulgated by the Federal Reserve Board, including, among others, Regulation
B (Equal Credit Opportunity), Regulation D (Reserves), Regulation E
(Electronic Fund Transfers), Regulation Z (Truth in Lending), Regulation CC
(Availability of Funds) and Regulation DD (Truth in Savings). As holders of
loans secured by real property, and as owners of real property, financial
institutions, including Home Savings, may be subject to potential liability
under various statutes and regulations applicable to property owners
generally, including statutes and regulations relating to the environmental
condition of the property.
 
  Liquidity. OTS regulations require a savings association to maintain, for
each calendar month, an average daily balance of liquid assets equal to at
least 5% of the average daily balance of its net withdrawable accounts plus
short-term borrowings during the preceding calendar month. The OTS may vary
the required percentage within a range of 4% to 10% and may also vary the
definition of liquid assets. OTS regulations also require a
 
                                      91
<PAGE>
 
savings association to maintain, for each calendar month, an average daily
balance of short-term liquid assets equal to at least 1% of the average daily
balance of its net withdrawable accounts plus short-term borrowings during the
preceding calendar month. Monetary penalties may be imposed for failure to
meet liquidity ratio requirements.
   
  Community Reinvestment Act. The CRA requires each savings association, as
well as other depository institutions, to identify the communities served by
the institution's offices and to identify the types of credit the institution
is prepared to extend within such communities. The CRA also requires the OTS
to assess the performance of the institution in meeting the credit needs of
its community and to take such assessments into consideration in reviewing
applications for mergers, acquisitions and other transactions. In connection
with its assessment of a savings association's CRA performance, the OTS will
assign a rating of "outstanding," "satisfactory," "needs to improve" or
"substantial noncompliance." Based on an examination conducted as of September
5, 1995, Home Savings was rated "outstanding."     
   
  Qualified Thrift Lender. A savings association must invest at least 65% of
its portfolio assets in "qualified thrift investments" (each as defined by
statute and OTS regulations) on a monthly average basis in nine out of every
12 months on a rolling 12-month "look back" basis. Home Savings was in
compliance with this requirement as of March 31, 1997 and would be in
compliance on a pro forma basis after giving effect to the Proposed Merger.
    
                       VALIDITY OF AHMANSON COMMON STOCK
   
  The validity of the shares of Ahmanson Common Stock to be issued in the
Offer will be passed upon for Ahmanson by Sullivan & Cromwell, New York, New
York.     
 
                                    EXPERTS
   
  The consolidated financial statements of Ahmanson as of December 31, 1996
and 1995, and for each of the years in the three-year period ended December
31, 1996, have been incorporated by reference herein and in the Registration
Statement in reliance upon the report of KPMG Peat Marwick LLP, independent
certified public accountants, incorporated by reference herein, and upon the
authority of said firm as experts in accounting and auditing.     
 
                     MANAGEMENT AND ADDITIONAL INFORMATION
   
  Certain information relating to the management, executive compensation,
various benefit plans (including stock plans), voting securities and the
principal holders thereof, certain relationships and related transactions and
other related matters as to Ahmanson and GWF is set forth in or incorporated
by reference in the 1996 Ahmanson 10-K and the 1996 GWF 10-K, respectively,
which are incorporated by reference in this Prospectus. See "Incorporation of
Certain Information by Reference". Ahmanson stockholders who wish to obtain
copies of Ahmanson's reports may contact Ahmanson at its address or telephone
number set forth under "Incorporation of Certain Information by Reference".
    
                                      92

<PAGE>
 
                                                                 
                                                           EXHIBIT 99.(a)(2)
 
                             LETTER OF TRANSMITTAL
 
                           H. F. AHMANSON & COMPANY
   
Charles R. Rinehart     
Chairman of the Board
and Chief Executive Officer
 
Dear Great Western Shareholder:
   
  This Letter of Transmittal enables you to exchange each of your shares of
Common Stock of Great Western Financial Corporation for [   ] shares of Common
Stock of H. F. Ahmanson & Company.* Please follow the instructions in this
letter in order to exchange your shares and receive the benefits of our Offer.
Simply complete and sign pages 2 and 3 and return your certificate(s) in the
enclosed envelope.     
 
  Our Offer will expire at [     ], Eastern Daylight Time, on [     ], 1997
(the "Expiration Date") unless extended. Shares which are tendered may be
withdrawn at any time prior to the Expiration Date.
 
  For further information or assistance regarding our Offer please call our
representatives listed on the back.
 
  Thank you for your time and support.
 
                                          Sincerely,
 
                                          [            ]
 
 
 
- --------
* Assumes that Ahmanson's average share price is between [  ] and [  ] at the
time of closing.
<PAGE>
 
                             LETTER OF TRANSMITTAL
              TO EXCHANGE EACH OUTSTANDING SHARE OF COMMON STOCK
            
         (INCLUDING THE ASSOCIATED COMMON STOCK PURCHASE RIGHTS)     
 
                                      OF
 
                      GREAT WESTERN FINANCIAL CORPORATION
 
                                      FOR
                       
                    A NUMBER OF SHARES OF COMMON STOCK     
 
                                      OF
 
                           H. F. AHMANSON & COMPANY
                   
                EQUAL TO THE EXCHANGE RATIO STATED HEREIN     
    
 THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK
 CITY TIME, ON [DAY]    , 1997, UNLESS THE OFFER IS EXTENDED. SHARES WHICH
 ARE TENDERED PURSUANT TO THE OFFER MAY BE WITHDRAWN AT ANY TIME PRIOR TO
 THE EXPIRATION OF THE OFFER.     
 
                     The Exchange Agent for the Offer is:
 
                             [                   ]
 
<TABLE>
<S>                           <C>                                <C>
          By Mail:                By Facsimile Transmission:      By Hand or Overnight Deliv-
                                                                             ery:
                               (for Eligible Institutions only)
                                        Fax: [       ]
</TABLE>
 
                             Confirm by telephone:
 
                                   [       ]
 
                               ----------------
 
 DELIVERY OF THIS LETTER OF TRANSMITTAL TO AN ADDRESS OTHER THAN AS SET FORTH
  ABOVE OR  TRANSMISSION OF  INSTRUCTIONS  VIA FACSIMILE  TRANSMISSION OTHER
   THAN AS SET FORTH  ABOVE WILL NOT CONSTITUTE A  VALID DELIVERY. YOU MUST
    SIGN THIS LETTER OF TRANSMITTAL WHERE INDICATED BELOW AND COMPLETE THE
     SUBSTITUTE FORM W-9 PROVIDED BELOW.
 
    THE INSTRUCTIONS ACCOMPANYING THIS LETTER OF TRANSMITTAL SHOULD BE READ
           CAREFULLY BEFORE THIS LETTER OF TRANSMITTAL IS COMPLETED.
 
  This Letter of Transmittal is to be completed by stockholders if
certificates for Shares (as defined below) are to be forwarded herewith or,
unless an Agent's Message (as defined in the Prospectus) is utilized, if
delivery of Shares are to be made by book-entry transfer to the account
maintained by the Exchange Agent at [            ], (collectively, the "Book-
Entry Transfer Facilities"), pursuant to the procedures set forth under "The
Offer--Procedure for Tendering" in the Prospectus. Stockholders who tender
Shares by book-entry transfer are referred to herein as "Book-Entry
Stockholders" and other stockholders are referred to herein as "Certificate
Stockholders." Stockholders whose certificates are not immediately available
or who cannot deliver their certificates and all other documents required
hereby to the Exchange Agent on or prior to the Expiration Date (as defined in
the Prospectus), or who cannot comply with the book-entry transfer procedures
on a timely basis, may nevertheless tender their Shares according to the
guaranteed delivery procedure set forth under "The Offer--Procedure for
Tendering" in the Prospectus. See Instruction 2. DELIVERY OF DOCUMENTS TO A
BOOK-ENTRY TRANSFER FACILITY DOES NOT CONSTITUTE DELIVERY TO THE EXCHANGE
AGENT FOR THIS OFFER (AS DEFINED HEREIN).
<PAGE>
 
[_]
  CHECK HERE IF SHARES ARE BEING DELIVERED BY BOOK-ENTRY TRANSFER MADE TO THE
  ACCOUNT MAINTAINED BY THE EXCHANGE AGENT WITH A BOOK-ENTRY TRANSFER
  FACILITY AND COMPLETE THE FOLLOWING:
 
  Name of Tendering Institution ______________________________________________
 
  Check Box of Applicable Book-Entry Transfer Facility
 
     [_]  [  ]
 
     [_]  [  ] (check one)
 
Account Number _________________________________________________________________
 
Transaction Code Number _______________________________________________________
 
[_]
  CHECK HERE IF SHARES ARE BEING TENDERED PURSUANT TO A NOTICE OF GUARANTEED
  DELIVERY PREVIOUSLY SENT TO THE EXCHANGE AGENT AND COMPLETE THE FOLLOWING:
 
  Name(s) of Registered Holder(s) ____________________________________________
 
  Date of Execution of Notice of Guaranteed Delivery _________________________
 
  Name Institution which Guaranteed Delivery _________________________________
 
  If Delivered by Book-Entry Transfer, Check Box of Applicable Book-Entry
  Transfer Facility:
 
     [_]  [  ]
 
     [_]  [  ] (check one)
 
Account Number _________________________________________________________________
 
Transaction Code Number ________________________________________________________
                         DESCRIPTION OF SHARES TENDERED
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
  NAME(S) AND
ADDRESS(ES) OF
  REGISTERED
   HOLDER(S)
(PLEASE FILL IN
 BLANK EXACTLY
  AS NAME(S)
 APPEAR(S) ON
      THE                           SHARES TENDERED
CERTIFICATE(S))          (ATTACH ADDITIONAL LIST IF NECESSARY)
- -------------------------------------------------------------------
                                    TOTAL NUMBER OF        NUMBER
                    CERTIFICATE     SHARES EVIDENCED      OF SHARES
                    NUMBER(S)*     BY CERTIFICATE(S)*    TENDERED**
                                        ---------------------------
                                        ---------------------------
                                        ---------------------------
                                        ---------------------------
                                        ---------------------------
                                        ---------------------------
<S>              <C>               <C>                <C>
                   TOTAL SHARES
</TABLE>
- --------------------------------------------------------------------------------
  * Need not be completed by stockholders delivering by book-entry transfer.
 ** Unless otherwise indicated, it will be assumed that all Shares evidenced
    by any certificate(s) delivered to the Exchange Agent are being
    tendered. See Instruction 4.
<PAGE>
 
                    NOTE: SIGNATURES MUST BE PROVIDED BELOW
              PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY
 
LADIES AND GENTLEMEN:
   
  The undersigned hereby delivers to H. F. Ahmanson & Company, a Delaware
corporation ("Ahmanson"), the above-described shares of Common Stock, par
value $1.00 per share (the "Shares"), of Great Western Financial Corporation,
a Delaware corporation ("Great Western"), pursuant to Ahmanson's offer to
exchange shares of Common Stock, par value $0.01 per share (the "Ahmanson
Common Stock"), of Ahmanson for Shares, upon the terms and subject to the
conditions set forth in the Prospectus dated [   ]  , 1997 (the "Prospectus"),
receipt of which is hereby acknowledged, as amended or supplemented from time
to time, and in this Letter of Transmittal (which together with the
Prospectus, as amended or supplemented from time to time, constitute the
"Offer").     
 
  Unless otherwise indicated herein under "Special Issuance Instructions,"
please issue the shares of Ahmanson Common Stock and/or return any
certificates for Shares not tendered or not accepted for exchange in the
name(s) of the registered holder(s) appearing under "Description of Shares
Tendered." Similarly, unless otherwise indicated under "Special Delivery
Instructions," please mail the Ahmanson Common Stock and cash in lieu of
fractional shares of Ahmanson Common Stock and/or return any certificates for
Shares not tendered or not accepted for exchange (and accompanying documents,
as appropriate) to the address(es) of the registered holder(s) appearing under
"Description of Shares Tendered." In the event that both the Special Delivery
Instructions and the Special Issuance Instructions are completed, please issue
the Ahmanson Common Stock and/or issue any certificates for Shares not so
tendered or accepted in the name of, and deliver said certificates and/or
return such certificates to, the person or persons so indicated. The
undersigned recognizes that Ahmanson has no obligation, pursuant to the
Special Payment Instructions, to transfer any Shares from the name of the
registered holder thereof if Ahmanson does not accept any of the Shares so
tendered.
<PAGE>
 
 
   SPECIAL ISSUANCE INSTRUCTIONS             SPECIAL DELIVERY INSTRUCTIONS
  (SEE INSTRUCTIONS 1, 5, 6 AND 7)           (SEE INSTRUCTIONS 1, 6 AND 7)
 
 
  To be completed ONLY if certifi-          To be completed ONLY if certifi-
 cate(s) for Shares not tendered           cate(s) for Shares not tendered
 or not accepted and/or the                or not accepted and/or the
 Ahmanson Common Stock are to be           Ahmanson Common Stock are to be
 issued in the name of someone             sent to someone other than the
 other than the undersigned.               undersigned, or to the under-
                                           signed at an address other than
                                           that shown above.
 
 Issue Ahmanson Common Stock
 and/or certificate(s) to:
 
                                           Mail Ahmanson Common Stock and/or
                                           certificate(s) to:
 
 Name _____________________________
       (PLEASE TYPE OR PRINT)              Name _____________________________
 Address __________________________              (PLEASE TYPE OR PRINT)
 __________________________________        Address __________________________
         (INCLUDE ZIP CODE)                __________________________________
 __________________________________                (INCLUDE ZIP CODE)
   (TAX IDENTIFICATION OR SOCIAL           __________________________________
           SECURITY NO.)                     (TAX IDENTIFICATION OR SOCIAL
    (SEE SUBSTITUTE FORM W-9 ON                      SECURITY NO.)
           REVERSE SIDE)
 
 [_] Credit Shares delivered by               (SEE SUBSTITUTE FORM W-9 ON
   book-entry transfer that are                      REVERSE SIDE)
   not accepted to the Book-Entry
   Transfer Facility account set
   forth below.
 
 Check appropriate box:
 
 [_] [  ]
 [_] [  ]
 __________________________________
          (ACCOUNT NUMBER)
 
<PAGE>
 
  Upon the terms and subject to the conditions of the Offer, subject to, and
effective upon, acceptance of the Shares tendered herewith in accordance with
the terms of the Offer, the undersigned hereby sells, assigns and transfers
to, or upon the order of, Ahmanson, all right, title and interest in and to
all of the Shares that are being tendered hereby and any and all Shares and
other securities issued or issuable in respect thereof on or after March 7,
1997 (collectively, "Distributions"), and appoints the Exchange Agent the true
and lawful agent and attorney-in-fact of the undersigned with respect to such
Shares (and any Distributions), with full power of substitution (such power of
attorney being deemed to be an irrevocable power coupled with an interest), to
(a) deliver such Share certificates (as defined herein) (and any
Distributions) or transfer ownership of such Shares (and any Distributions) to
the account books maintained by a Book-Entry Transfer Facility, together in
either such case with all accompanying evidences of transfer and authenticity,
to or upon the order of Ahmanson (b) present such Shares (and any
Distributions) for transfer on the books of Great Western and (c) receive all
benefits and otherwise exercise all rights of beneficial ownership of such
Shares (and any Distributions), all in accordance with the terms and the
conditions of the Offer.
 
  The undersigned hereby irrevocably appoints the designees of Ahmanson, and
each of them, the attorneys-in-fact and proxies of the undersigned, each with
full power of substitution, to vote in such manner as each such attorney and
proxy or any substitute thereof shall deem proper in the sole discretion of
such attorney-in-fact and proxy or such substitute, and otherwise act
(including pursuant to written consent) with respect to all of the Shares
tendered hereby (and any Distributions) which have been accepted by Ahmanson
prior to the time of such vote or action, which the undersigned is entitled to
vote at any meeting of stockholders (whether annual or special and whether or
not an adjourned meeting), of Great Western or otherwise. This proxy and power
of attorney is coupled with an interest in the Shares and is irrevocable and
is granted in consideration of, and is effective upon, the acceptance of such
Shares (and any Distributions) by Ahmanson in accordance with the terms of the
Offer. Such acceptance for exchange shall revoke any other proxy granted by
the undersigned at any time with respect to such Shares (and any
Distributions) and no subsequent proxies will be given (or, if given, will not
be deemed effective) with respect thereto by the undersigned. The undersigned
understands that in order for Shares to be deemed validly tendered,
immediately upon Ahmanson's acceptance of such Shares (and any Distributions)
for exchange Ahmanson or its designee must be able to exercise full voting
rights with respect to such Shares (and any Distributions).
 
  The undersigned hereby represents and warrants that the undersigned has full
power and authority to tender, sell, assign and transfer the Shares (and any
Distributions) tendered hereby and that when the same are accepted for
exchange by Ahmanson, Ahmanson will acquire good, marketable and unencumbered
title thereto, free and clear of all liens, restrictions, charges and
encumbrances, and the same will not be subject to any adverse claim. The
undersigned will, upon request, execute and deliver any additional documents
deemed by the Exchange Agent or Ahmanson to be necessary or desirable to
complete the sale, assignment, and transfer of the Shares (and any
Distributions) tendered hereby. In addition, the undersigned shall promptly
remit and transfer to the Exchange Agent for the account of Ahmanson any and
all Distributions in respect of the Shares tendered hereby, accompanied by
appropriate documentation of transfer.
 
  All authority herein conferred or agreed to be conferred shall not be
affected by and shall survive the death or incapacity of the undersigned and
any obligation of the undersigned hereunder shall be binding upon the heirs,
personal representatives, successors and assigns of the undersigned. Subject
to the withdrawal rights set forth under "The Offer--Withdrawal Rights" in the
Prospectus, the tender of Shares hereby made is irrevocable.
 
  The undersigned understands that tenders of Shares pursuant to any one of
the procedures described under "The Offer--Procedure for Tendering"in the
Prospectus and in the instructions hereto and acceptance of such Shares will
constitute a binding agreement between the undersigned and Ahmanson upon the
terms and subject to the conditions set forth in the Offer.
<PAGE>
 
                                   IMPORTANT
                                   SIGN HERE
             (PLEASE COMPLETE SUBSTITUTE FORM W-9 ON REVERSE SIDE)
 ...............................................................
 ...............................................................
                 SIGNATURE(S) OF STOCKHOLDER(S)
 Dated: .................................................., 1997
 
 (Must be signed by registered holder(s) exactly as name(s)
 appear(s) on stock certificate(s) or on a security position
 listing or by person(s) authorized to become registered
 holder(s) by certificates and documents transmitted herewith.
 If signature is by trustees, executors, administrators,
 guardians, attorneys-in-fact, officers of corporations or
 others acting in a fiduciary or representative capacity,
 please set forth full title and see Instruction 5.)
 
 
 Name(s)........................................................
      .......................................................
                          (PLEASE PRINT)
 
 Capacity (Full Title)..........................................
 
 Address........................................................
 
      .......................................................
                        (INCLUDE ZIP CODE)
 
 Area Code and Telephone Number.................................
 
 Tax Identification or Social Security No. .....................
 
             GUARANTEE OF SIGNATURE(S) (SEE INSTRUCTIONS 1 AND 5)
 
 Authorized Signature...........................................
 
 Name...........................................................
                      (PLEASE TYPE OR PRINT)
 
 Address........................................................
 
      .......................................................
                        (INCLUDE ZIP CODE)
 
 Name of Firm...................................................
 
 Dated: .................................................., 1997
<PAGE>
 
                                 INSTRUCTIONS
 
             FORMING PART OF THE TERMS AND CONDITIONS OF THE OFFER
 
  1. Guarantee of Signatures. Except as otherwise provided below, all
signatures on this Letter of Transmittal must be guaranteed by a financial
institution (including most banks, savings and loan associations and brokerage
houses) which is a participant in the Securities Transfer Agents Medallion
Program, the New York Stock Exchange Medallion Signature Program or the Stock
Exchange Medallion Program (an "Eligible Institution"). Signatures on this
Letter of Transmittal need not be guaranteed (a) if this Letter of Transmittal
is signed by the registered holder(s) of the Shares (which term, for purposes
of this document, shall include any participant in one of the Book-Entry
Transfer Facilities whose name appears on a security position listing as the
owner of Shares) tendered herewith and such holder(s) have not completed the
instruction entitled "Special Issuance Instructions" on this Letter of
Transmittal or (b) if such Shares are tendered for the account of an Eligible
Institution. See Instruction 5.
 
  2. Delivery of Letter of Transmittal and Certificates or Book-Entry
Confirmations. This Letter of Transmittal is to be used either if certificates
are to be forwarded herewith or, unless an Agent's Message is utilized, if
tenders are to be made pursuant to the procedures for tender by book-entry
transfer set forth in "The Offer--Procedure for Tendering" in the Prospectus.
Certificates for all physically tendered Shares ("Share Certificates"), or
confirmation of any book-entry transfer into the Exchange Agent's account at
one of the Book-Entry Transfer Facilities of Shares tendered by book-entry
transfer, as well as this Letter of Transmittal or facsimile thereof, properly
completed and duly executed with any required signature guarantees, and any
other documents required by this Letter of Transmittal, must be received by
the Exchange Agent at one of its addresses set forth herein on or prior to the
Expiration Date (as defined in the Prospectus).
 
  Stockholders whose certificates are not immediately available or who cannot
deliver their certificates and all other required documents to the Exchange
Agent on or prior to the Expiration Date or who cannot complete the procedures
for book-entry transfer on a timely basis may nevertheless tender their Shares
by properly completing and duly executing a Notice of Guaranteed Delivery
pursuant to the guaranteed delivery procedure set forth under "The Offer--
Procedure for Tendering" in the Prospectus Pursuant to such procedure (i) such
tender must be made by or through an Eligible Institution; (ii) a properly
completed and duly executed Notice of Guaranteed Delivery substantially in the
form made available by Ahmanson must be received by the Exchange Agent on or
prior to the Expiration Date; and (iii) the Share Certificates for all
tendered Shares (or a confirmation of a book-entry transfer of such securities
into the Exchange Agent's account at a Book-Entry Transfer Facility of Shares
tendered by book-entry transfer), in proper form for transfer, together with a
properly completed and duly executed Letter of Transmittal (or facsimile
thereof) with any required signature guarantees (or, in the case of a book-
entry delivery, an Agent's Message) and all other documents required by this
Letter of Transmittal, must be received by the Exchange Agent within three New
York Stock Exchange, Inc. trading days after the date of execution of such
Notice of Guaranteed Delivery.
 
  IF SHARE CERTIFICATES ARE FORWARDED SEPARATELY TO THE EXCHANGE AGENT, A
PROPERLY COMPLETED AND DULY EXECUTED LETTER OF TRANSMITTAL MUST ACCOMPANY EACH
SUCH DELIVERY.
 
  THE METHOD OF DELIVERY OF SHARE CERTIFICATES AND ALL OTHER REQUIRED
DOCUMENTS, INCLUDING DELIVERY THROUGH ANY BOOK-ENTRY TRANSFER FACILITY, IS AT
THE OPTION AND RISK OF THE TENDERING STOCKHOLDER, AND THE DELIVERY WILL BE
DEEMED MADE ONLY WHEN ACTUALLY RECEIVED BY THE EXCHANGE AGENT. IF DELIVERY IS
BY MAIL, REGISTERED MAIL WILL RETURN RECEIPT REQUESTED, PROPERLY INSURED, IS
RECOMMENDED. IN ALL CASES, SUFFICIENT TIME SHOULD BE ALLOWED TO ENSURE TIMELY
DELIVERY.
 
  No alternative, conditional or contingent tenders will be accepted and no
fractional Shares will be accepted. All tendering stockholders, by execution
of this Letter of Transmittal (or facsimile thereof), waive any right to
receive any notice of the acceptance of their Shares for exchange.
 
  3. Inadequate Space. If the space provided herein is inadequate, the
certificate numbers and/or the number of Shares should be listed on a separate
schedule attached hereto.
<PAGE>
 
  4. Partial Tenders (Not applicable to stockholders who tender by book-entry
transfer). If fewer than all the Shares evidenced by any certificate submitted
are to be tendered, fill in the number of Shares which are to be tendered in
the box entitled "Number of Shares Tendered." In such cases, new
certificate(s) for the remainder of the Shares that were evidenced by your old
certificate(s) will be sent to you, unless otherwise provided in the
appropriate box on this Letter of Transmittal, as soon as practicable after
the Expiration Date. All Shares represented by certificates delivered to the
Exchange Agent will be deemed to have been tendered unless otherwise
indicated.
 
  5. Signatures on Letter of Transmittal; Stock Powers and Endorsements. If
this Letter of Transmittal is signed by the registered holder(s) of the Shares
tendered hereby, the signature must correspond with the name(s) as written on
the face of the certificates without alteration, enlargement or any change
whatsoever.
 
  If any of the Shares tendered hereby are owned of record by two or more
joint owners, all such owners must sign this Letter of Transmittal.
 
  If any of the tendered Shares are registered in different names on several
certificates, it will be necessary to complete, sign and submit as many
separate Letters of Transmittal as there are different registrations of
certificates.
 
  If this Letter of Transmittal or any certificates or stock powers are signed
by trustees, executors, administrators, attorneys-in-fact, officers of
corporations or others acting in a fiduciary or representative capacity, such
persons should so indicate when signing, and proper evidence satisfactory to
Ahmanson of their authority so to act must be submitted.
 
  If this Letter of Transmittal is signed by the registered holder(s) of the
Shares listed and transmitted hereby, no endorsements of certificates or
separate stock powers are required unless Ahmanson Common Stock or
certificates for Shares not tendered or accepted are to be issued in the name
of a person other than the registered holder(s). Signatures on such
certificates or stock powers must be guaranteed by an Eligible Institution.
 
  If this Letter of Transmittal is signed by a person other than the
registered holder of the certificate(s) listed, the certificate(s) must be
endorsed or accompanied by appropriate stock powers, in either case signed
exactly as the name or names of the registered holder or holders appear on the
certificates(s). Signatures on such certificates or stock powers must be
guaranteed by an Eligible Institution.
 
  6. Stock Transfer Taxes. Ahmanson will pay or cause to be paid any such
stock transfer taxes with respect to the transfer and sale of Shares to it or
its order pursuant to the Offer. If, however, delivery of the consideration in
respect of the Offer is to be made to, or (in the circumstances permitted
hereby) if certificates for Shares not tendered or accepted are to be
registered in the name of, any person other than the registered holder, or if
tendered certificates are registered in the name of any person other than the
person(s) signing this Letter of Transmittal, the tendering holder must
provide satisfactory evidence of the payment of any applicable transfer taxes
(whether imposed on the registered holder or such person) payable on account
of the transfer to such person prior to the delivery of the consideration
pursuant to the Offer.
 
  EXCEPT AS PROVIDED IN THIS INSTRUCTION 6, IT WILL NOT BE NECESSARY FOR
TRANSFER TAX STAMPS TO BE AFFIXED TO THE CERTIFICATES LISTED IN THIS LETTER OF
TRANSMITTAL.
 
  7. Special Issuance and Delivery Instructions. If certificates for Ahmanson
Common Stock and/or certificates for Shares not tendered or not accepted for
exchange are to be issued in the name of a person other than the signer of
this Letter of Transmittal or if certificates for Ahmanson Common Stock and
cash in lieu of fractional shares of Ahmanson Common Stock and/or certificates
for Shares not tendered or not accepted for exchange are to be mailed to
someone other than the signer of this Letter of Transmittal or to an address
other than that shown above, the appropriate boxes on this Letter of
Transmittal should be completed. Stockholders tendering Shares by book-entry
transfer may request that Shares not accepted pursuant to the Offer be
credited to such account maintained at a Book-Entry Transfer Facility as such
stockholder may designate hereon. If no such instructions are given, such
Shares not accepted will be returned by crediting the account at the Book-
Entry Transfer Facility designated herein.
<PAGE>
 
  8. Requests for assistance or Additional Copies. Questions or requests for
assistance may be directed to, or additional copies of the Prospectus, this
Letter of Transmittal, the Notice of Guaranteed Delivery and other tender
offer materials may be obtained from, the Information Agent or the Dealer
Managers at their respective addresses set forth below or form your broker,
dealer, commercial bank or trust company.
 
  9. Substitute Form W-9. Each tendering stockholder is required to provide
the Exchange Agent with a correct Taxpayer Identification Number ("TIN"),
generally the stockholder's social security or federal employer identification
number, on Substitute Form W-9 below. If a stockholder fails to provide a TIN
to the Exchange Agent, such stockholder may be subject to a $50 penalty
imposed by the Internal Revenue Service. In addition, payments of cash in lieu
of fractional shares of Ahmanson Common Stock that are made to such
stockholder with respect to Shares accepted pursuant to the Offer may be
subject to backup withholding of 31%. The box in Part 3 of the form may be
checked if the tendering stockholder has not been issued a TIN and has applied
for a number or intends to apply for a number in the near future. If the box
in Part 3 is checked and the Exchange Agent is not provided with a TIN within
60 days, the Exchange Agent will withhold 31% of all payments of cash
thereafter until a TIN is provided to the Exchange Agent. The stockholder is
required to give the Exchange Agent the social security number or employer
identification number of the record owner of the Shares or of the last
transferee appearing on the stock powers attached to, or endorsed on, the
Shares. If the Shares are in more than one name or are not in the name of the
actual owner, consult the enclosed Guidelines for Certification of Taxpayer
Identification Number on Substitute Form W-9 for additional guidance on which
number to report.
 
  IMPORTANT: THIS LETTER OF TRANSMITTAL OR A FACSIMILE COPY HEREOF (TOGETHER
WITH SHARE CERTIFICATES OR CONFIRMATION OF BOOK-ENTRY TRANSFER AND ALL OTHER
REQUIRED DOCUMENTS) OR THE NOTICE OF GUARANTEED DELIVERY MUST BE RECEIVED BY
THE EXCHANGE AGENT ON OR PRIOR TO THE EXPIRATION DATE.
 
                           IMPORTANT TAX INFORMATION
 
  Certain stockholders (including, among others, all corporations and certain
foreign individuals) are not subject to backup withholding. In order for a
foreign individual to qualify as an exempt recipient, that stockholder must
submit a Form W-8, signed under penalties of perjury, attesting to that
individual's exempt status. A Form W-8 can be obtained from the Exchange
Agent. See the enclosed Guidelines for Certification of Taxpayer
Identification Number on Substitute Form W-9 for additional instructions.
 
  Backup withholding is not an additional tax. Rather, the tax liability of
persons subject to backup withholding will be reduced by the amount of tax
withheld. If withholding results in an overpayment of taxes, a refund may be
obtained from the Internal Revenue Service.
<PAGE>
 
           THIS PAGE MUST BE COMPLETED BY ALL TENDERING SHAREHOLDERS.
           PLEASE FILL IN YOUR SOCIAL SECURITY NUMBER AND SIGN BELOW.
 
              PLEASE SEE INSTRUCTION 9 FOR ADDITIONAL INFORMATION.
 
                           PAYER'S NAME: [          ]
 
 
                        PART I--PLEASE PROVIDE YOUR
                        TIN IN THE BOX AT RIGHT AND    ----------------------
                        CERTIFY BY SIGNING AND         Social Security Number
                        DATING BELOW.                            OR
 
 SUBSTITUTE
 FORM W-9
 DEPARTMENT OF
 THE TREASURY                                          ----------------------
 INTERNAL                                              Employer Identification
 REVENUE                                                       Number
 SERVICE                PART II--CERTIFICATES--Under penalties of perjury, I
                        certify that:
                       --------------------------------------------------------
 
                        (1) The number shown on this form is my correct
                            Taxpayer Identification Number (or I am waiting
                            for a number to be issued to me); and
 
 PAYER'S REQUEST FOR TAXPAYER IDENTIFICATION NUMBER (TIN)
 
                        (2) I am not subject to backup withholding because
                            (i) I am exempt from backup withholding, (ii) I
                            have not been notified by the Internal Revenue
                            Service (the "IRS") that I am subject to backup
                            withholding as a result of a failure to report
                            all interest or dividends, or (iii) the IRS has
                            notified me that I am no longer subject to backup
                            withholding.
                       --------------------------------------------------------
                        CERTIFICATION INSTRUCTIONS--You must     PART III--
                        cross out item (2) in Part 2 above if    Awaiting
                        you have been notified by the IRS that   TIN [_]
                        you are subject to backup withholding
                        because of under-reporting interest or
                        dividends on your tax return. However,
                        if after being notified by the IRS
                        that you were subject to backup
                        withholding you received another
                        notification from the IRS stating that
                        you are no longer subject to backup
                        withholding, do not cross out item
                        (2).
                       --------------------------------------------------------
                        SIGNATURE X_______________________     DATE __________
                        NAME (Please Print) __________________________________
 
 
 NOTE: FAILURE TO COMPLETE AND RETURN THIS FORM MAY RESULT IN BACKUP
       WITHHOLDING OF 31% OF ANY CASH PAYMENTS MADE TO YOU PURSUANT TO THE
       OFFER. PLEASE REVIEW THE ENCLOSED GUIDELINES FOR CERTIFICATION OF
       TAXPAYER IDENTIFICATION NUMBER ON SUBSTITUTE FORM W-9 FOR ADDITIONAL
       DETAILS.
 
 COMPLETE THE FOLLOWING CERTIFICATION ONLY IF YOU CHECKED THE BOX IN PART 3 OF
                              SUBSTITUTE FORM W-9.
 
             CERTIFICATE OF AWAITING TAXPAYER IDENTIFICATION NUMBER
 
   I certify under penalties of perjury that a Taxpayer Identification
 Number has not been issued to me, and either (i) I have mailed or delivered
 an application to receive a Taxpayer Identification Number to the
 appropriate Internal Revenue Service Center or Social Security
 Administration Office or (ii) I intend to mail or deliver an application in
 the near future. I understand that if I do not provide a Taxpayer
 Identification Number within 60 days, 31% of all reportable payments made
 to me thereafter will be withheld until I provide a number.
 
 ------------------------------------    ------------------------------------
              SIGNATURE                                  DATE
 
 ------------------------------------
         NAME (PLEASE PRINT)
<PAGE>
 
                           IMPORTANT TAX INFORMATION
 
  Certain shareholders (including, among others, all corporations and certain
foreign individuals) are not subject to backup withholding. In order for a
foreign individual to qualify as an exempt recipient, that shareholder must
submit a Form W-8, signed under penalties of perjury, attesting to that
individual's exempt status. A Form W-8 can be obtained from the Exchange
Agent. See the enclosed Guidelines for Certification of Taxpayer
Identification Number on Substitute Form W-9 for additional instructions.
 
  Backup withholding is not an additional tax. Rather, the tax liability of
persons subject to backup withholding will be reduced by the amount of tax
withheld. If withholding results in an overpayment of taxes, a refund may be
obtained from the Internal Revenue Service.
 
                                   OPTIONAL
 
  If you would like shares of H. F. Ahmanson & Company Common Stock to be
delivered to a different address, complete the top box below.
 
  If you would like shares of H. F. Ahmanson & Company Common Stock to be
issued in a different name, complete the bottom box below. You must include a
signature guarantee if you complete the box at the bottom of the page. The
signature guarantee process is more fully described in Instructions 1 and 5.
 
                         SPECIAL DELIVERY INSTRUCTIONS
                         (SEE INSTRUCTIONS 1, 6 AND 7)
 
  To be completed ONLY if certificate(s) for the H. F. Ahmanson & Company
 Common Stock and/or any check to be issued for cash in lieu of fractional
 shares of H. F. Ahmanson & Company Common Stock are to be sent to someone
 other than the undersigned, or to the undersigned at an address other than
 that shown on the address label.
 
 Mail H. F. Ahmanson & Company Common Stock and/or check to be issued for
 cash in lieu of fractional shares of H. F. Ahmanson & Company Common Stock
 to:
 
 Name _______________________________________________________________________
                             (PLEASE TYPE OR PRINT)
 Address ____________________________________________________________________
 City/State/Zip Code ________________________________________________________
<PAGE>
 
                         SPECIAL ISSUANCE INSTRUCTIONS
                        (SEE INSTRUCTIONS 1, 5, 6 AND 7)
 
  To be completed ONLY if certificate(s) for the H. F. Ahmanson & Company
 Common Stock and/or any check to be issued for cash in lieu of fractional
 shares of H. F. Ahmanson & Company Common Stock are to be issued in the
 name of someone other than those shown on your certificate(s).
 
 Issue H. F. Ahmanson & Company Common Stock and/or check to be issued for
 cash in lieu of fractional shares of H. F. Ahmanson & Company Common Stock
 to:
 
 Name _______________________________________________________________________
                             (PLEASE TYPE OR PRINT)
 Address ____________________________________________________________________
 City/State/Zip Code ________________________________________________________
 ____________________________________________________________________________
              (SOCIAL SECURITY NUMBER OR TAX IDENTIFICATION NUMBER)
 
                           GUARANTEE OF SIGNATURE(S)
 Authorized Signature _______________________________________________________
 Name _______________________________________________________________________
                             (PLEASE TYPE OR PRINT)
 Address ____________________________________________________________________
 City/State/Zip Code ________________________________________________________
 Name of Firm ____________________________     Dated: ________________ , 1996
<PAGE>
 
                                   OPTIONAL
 
  You may identify in the box below the Soliciting Dealer, if any, who
solicited your tender of Shares. By doing so you may entitle that Soliciting
Dealer to receive from H. F. Ahmanson & Company the fee described in
Instruction 10.
 
  In order to be paid the solicitation fee for Shares held in nominee name
tendered by a Soliciting Dealer on behalf of a customer who is the beneficial
owner of such Shares, the Soliciting Dealer must list each customer's name or
account number and the number of Shares tendered for such customer on the line
entitled "Name or Account Number of Beneficial Owner" and "Number of Shares
Tendered", respectively, provided for such purpose in the box below.
 
                               SOLICITED TENDERS
 
  The undersigned represents that the Soliciting Dealer who solicited and
 obtained the tender evidenced by this Letter of Transmittal is:
 Name of Firm _______________________________________________________________
                                (PLEASE PRINT)
 Name of Individual Broker __________________________________________________
 Address ____________________________________________________________________
 City/State/Zip Code ________________________________________________________
 
  The following to be completed ONLY if a customer's Shares held in nominee
 name are tendered by a Soliciting Dealer.
 
       Name or Account Number                  Number of Shares Tendered
        of Beneficial Owner
 
                     (ATTACH ADDITIONAL LIST IF NECESSARY)
 __________________________________        __________________________________
 __________________________________        __________________________________
 __________________________________        __________________________________
<PAGE>
 
IN ORDER TO TENDER YOUR SHARES, SIMPLY:
1. SIGN BY THE "X" IN THE BOX BELOW
2. COMPLETE THE SUBSTITUTE FORM W-9 ON PAGE 10.
 
                               PLEASE SIGN HERE.
 Signature(s) of Shareholder(s) X___________________________________________
                         ____________________________________________________
 Dated: , 1997
 
 (Must be signed by registered holder(s) exactly as name(s) appear(s) on
 stock certificate(s) or on a security position listing or by person(s)
 authorized to become registered holder(s) by certificate(s) and documents
 transmitted herewith. If signature is by trustees, executors,
 administrators, guardians, attorneys-in-fact, officers of corporations or
 others acting in a fiduciary or representative capacity, please provide
 the following information and see Instruction 5.)
 
    I  CERTIFY THAT  I  HAVE  READ THE  INSTRUCTIONS  ENCLOSED WITH  AND
       CONSTITUTING A  PART OF THIS LETTER OF TRANSMITTAL  AND THAT I
           COMPLY WITH  THE  SHAREHOLDER  REPRESENTATION  INCLUDED
              WITH SUCH INSTRUCTIONS.
 Name(s) ___________________________________________________________________
                               (PLEASE PRINT)
 Capacity (Full Title) _____________________________________________________
 City/State/Zip Code _______________________________________________________
                       _________________________________
                      (AREA CODE AND TELEPHONE NUMBER)
 
          COMPLETE THE BOX BELOW ONLY IF YOU WISH TO TENDER LESS THAN
                ALL THE SHARES EVIDENCED BY YOUR CERTIFICATE(S)
 
     CERTIFICATES AND SHARES TENDERED (ATTACH ADDITIONAL LIST IF NECESSARY)
- --------------------------------------------------------------------------------
        CERTIFICATE    TOTAL NUMBER OF SHARES         NUMBER OF
         NUMBER(S)*  EVIDENCED BY CERTIFICATE(S)* SHARES TENDERED**
- -------------------------------------------------------------------
- -------------------------------------------------------------------
- -------------------------------------------------------------------
- -------------------------------------------------------------------
- -------------------------------------------------------------------
- -------------------------------------------------------------------
   TOTAL
  SHARES
- -------------------------------------------------------------------
  * Do not complete if delivering shares by book-entry transfer.
 ** You must indicate if you are tendering less than all Shares evidenced
    by any certificate(s) delivered to the Exchange Agent. See Instruction
    4.
<PAGE>
 
                    The Information Agent for the Offer is:
                            
                         MACKENZIE PARTNERS, INC.     
 
                                   [Address]
                                 [Phone Number]
 
                      The Exchange Agent for the Offer is:
 
                          [                          ]
 
                             By Overnight Courier:
 
                                   [Address]
 
        By Mail:          By Facsimile Transmission:          By Hand:
                          (for Eligible Institutions
                                     only)
 
 
        [Address]                                             [Address]
 
                               Fax: [fax number]
 
                             Confirm by telephone:
 
                                [Phone Number]
                     
                  The Dealer Managers for the Offer are:     
   
CREDIT SUISSE FIRST BOSTON CORPORATION_______________MONTGOMERY SECURITIES     

<PAGE>
 
                                                                  
                                                            EXHIBIT 99.(a)(3)
 
                         NOTICE OF GUARANTEED DELIVERY
 
                                      FOR
 
                        TENDER OF SHARES OF COMMON STOCK
 
                                       OF
 
                      GREAT WESTERN FINANCIAL CORPORATION
 
                                       TO
 
                            H. F. AHMANSON & COMPANY
                    (NOT TO BE USED FOR SIGNATURE GUARANTEE)
 
  As set forth under "The Offer--Procedure for Tendering" in the Prospectus,
dated [    ], 1997 (the "Prospectus"), this form or one substantially
equivalent hereto must be used to accept the Offer (as defined below) of
certificates for shares of Common Stock, par value $1.00 per share (the
"Shares"), of Great Western Financial Corporation, a Delaware corporation
("Great Western"). Such form may be delivered by hand or transmitted by
telegram, facsimile transmission or mail to the Exchange Agent, and must
include a guarantee by an Eligible Institution (as defined in the Prospectus).
See "The Offer--Procedure for Tendering" in the Prospectus.
 
                      The Exchange Agent for the Offer is:
 
                                       []
 
        By Mail:         By Facsimile Transmission:    By Hand or Overnight
                         (for Eligible Institutions         Delivery:
                                   only)
 
 
        [     ]
 
                                                             [     ]
                                Fax: [     ]
 
                  Confirm Facsimile Transmission by Telephone:
 
                                  [     ]
 
  DELIVERY OF THIS NOTICE OF GUARANTEED DELIVERY TO AN ADDRESS OTHER THAN AS
SET FORTH ABOVE, OR TRANSMISSION OF INSTRUCTIONS VIA FACSIMILE TRANSMISSION
OTHER THAN AS SET FORTH ABOVE, WILL NOT CONSTITUTE A VALID DELIVERY.
 
  This form is not to be used to guarantee signatures. If a signature on a
Letter of Transmittal is required to be guaranteed by an Eligible Institution
under the instructions thereto, such signature guarantee must appear in the
applicable space provided in the signature box on the Letter of Transmittal.
<PAGE>
 
 
 LADIES AND GENTLEMEN:
    
   The undersigned hereby tenders to H. F. Ahmanson & Company, a Delaware
 corporation, upon the terms and subject to the conditions set forth in the
 Prospectus dated [   ], 1997, as amended from time to time, and in the
 related Letter of Transmittal (which together constitute the "Offer"),
 receipt of which is hereby acknowledged, the number of Shares shown in the
 Box below pursuant to the guaranteed delivery procedures set forth under
 "The Offer--Procedure for Tendering" in the Prospectus.     
 
 Shares ____________________________________________________________________
 
 Certificate No(s). for Shares (if available) ______________________________
 
 Name(s) of Record Holder(s) _______________________________________________
 
 ___________________________________________________________________________
                             (Please Type or Print)
 ___________________________________________________________________________
 
 Address(es) _______________________________________________________________
                                                                   (Zip Code)
 Area Code and Tel. No(s). _________________________________________________
 
 Check ONE box if Shares will be tendered by book-entry transfer.
 
 [_][]
 
 [_][]
 
 [_][]
 
 Signature(s) ______________________________________________________________
 
 ___________________________________________________________________________
 
 Account Number ____________________________________________________________
 
 Dated ____________ , 1997
 
                     THE GUARANTEE BELOW MUST BE COMPLETED.
<PAGE>
 
 
                                   GUARANTEE
 
                    (NOT TO BE USED FOR SIGNATURE GUARANTEE)
 
   The undersigned, a financial institution which is a participant in the
 Securities Transfer Agents Medallion Program, the New York Stock Exchange
 Medallion Signature Program or the Stock Exchange Medallion Program,
 guarantees (a) that the above named person(s) has (have) a "net long
 position" in the Shares tendered hereby within the meaning of Rule 14e-4
 under the Securities Exchange Act of 1934, as amended, and (b) to deliver
 to the Exchange Agent, at one of its addresses set forth above,
 certificates representing the Shares tendered hereby, in proper form for
 transfer, or confirmation of book-entry transfer of such Shares into the
 Exchange Agent's accounts at [
                      ], in each case with delivery of a properly completed
 and duly executed Letter of Transmittal (or a facsimile copy thereof), or
 an Agent's Message (as defined in the Prospectus) in the case of book-
 entry transfer, and any other documents required by the Letter of
 Transmittal, within three New York Stock Exchange, Inc. trading days of
 the date hereof.
 
 Name of Firm ______________________________________________________________
 
 ___________________________________________________________________________
                             (Authorized Signature)
 Address ___________________________________________________________________
                                                                   (Zip Code)
 Area Code and Tel. No. ____________________________________________________
 
 Name ______________________________________________________________________
                             (Please Type or Print)
 Title _____________________________________________________________________
 
 Date _____________ , 1997
 
 NOTE: DO NOT SEND CERTIFICATES FOR SHARES WITH THIS NOTICE. SHARE
        CERTIFICATES SHOULD BE SENT WITH YOUR LETTER OF TRANSMITTAL.

<PAGE>
 
                                                                 
                                                            EXHIBIT 99.(a)(4)
 
<TABLE>   
<S>                                            <C>
   CREDIT SUISSE FIRST BOSTON CORPORATION                  MONTGOMERY SECURITIES
              11 MADISON AVENUE                            600 MONTGOMERY STREET
          NEW YORK, NEW YORK 10055                    SAN FRANCISCO, CALIFORNIA 94111
         1-800-704-8076 (TOLL FREE)                      1-800-438-6571 (TOLL FREE)
</TABLE>    
 
           OFFER TO EXCHANGE EACH OUTSTANDING SHARE OF COMMON STOCK
            
         (INCLUDING THE ASSOCIATED COMMON STOCK PURCHASE RIGHTS)     
 
                                      OF
 
                      GREAT WESTERN FINANCIAL CORPORATION
 
                                      FOR
                       
                    A NUMBER OF SHARES OF COMMON STOCK     
                                        
                                         
                                      OF
                           H. F. AHMANSON & COMPANY
                   
                EQUAL TO THE EXCHANGE RATIO STATED HEREIN     
    
 THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK
 CITY TIME, ON [DAY],     , 1997, UNLESS THE OFFER IS EXTENDED. SHARES
 WHICH ARE TENDERED PURSUANT TO THE OFFER MAY BE WITHDRAWN AT ANY TIME
 PRIOR TO THE EXPIRATION OF THE OFFER.     
                                                               
                                                            [      ], 1997     
 
To Brokers, Dealers, Commercial Banks,
 Trust Companies and Other Nominees:
   
  We have been appointed by H. F. Ahmanson & Company, a Delaware corporation
("Ahmanson"), to act as Dealer Managers in connection with Ahmanson's offer to
exchange a number of shares of Common Stock, par value $0.01 per share (the
"Ahmanson Common Stock"), of Ahmanson (such number, the "Exchange Ratio")
determined by dividing $50 by the average closing price of Ahmanson Common
Stock on the New York Stock Exchange (the "NYSE") on the 20 trading days
ending in the [third] trading day prior to the Expiration Date, subject to a
maximum of 1.20 shares of Ahmanson Common Stock and a minimum of 1.10 shares
of Ahmanson Common Stock for each outstanding share of Common Stock, par value
$1.00 per share (each, a "Share" and collectively, the "Shares"), of Great
Western Financial Corporation, a Delaware corporation ("Great Western"),
including the associated common stock purchase rights (each, a "Right" and
collectively, the "Rights" issued pursuant to the GWF Rights Plan, upon the
terms and subject to the conditions set forth in the Prospectus, dated [   ]
 , 1997 (the "Prospectus"), and in the related Letter of Transmittal (which
together constitute the "Offer"), enclosed herewith.     
   
  THE OFFER IS CONDITIONED UPON, AMONG OTHER THINGS, THE MINIMUM TENDER
CONDITION, THE AHMANSON STOCKHOLDER APPROVAL CONDITION, THE RIGHTS PLAN AND
DGCL 203 CONDITION, THE GWF/WAMU MERGER AGREEMENT CONDITION AND THE REGULATORY
APPROVALS CONDITION (IN EACH CASE AS DEFINED IN THE PROSPECTUS). SEE "THE
OFFER--MINIMUM TENDER CONDITION," "--AHMANSON STOCKHOLDER APPROVAL CONDITION,"
"--GWF/WAMU MERGER AGREEMENT CONDITION," "--REGULATORY APPROVALS CONDITION"
AND "--CERTAIN OTHER CONDITIONS OF THE OFFER" IN THE PROSPECTUS.     
<PAGE>
 
  For your information and for forwarding to your clients for whom you hold
Shares registered in your name or in the name of your nominees, or who hold
Shares registered in their own names, we are enclosing the following
documents:
     
    1. Prospectus dated [    ]  , 1997;     
 
    2. Letter of Transmittal (together with accompanying Substitute Form W-9)
  to be used by holders of Shares in accepting the Offer and tendering
  Shares;
 
    3. Notice of Guaranteed Delivery to be used to accept the Offer if
  certificates for Shares are not immediately available, if time will not
  permit all required documents to reach the Exchange Agent prior to the
  Expiration Date (as defined in the Prospectus) or if the procedure for
  book-entry transfer cannot be completed on a timely basis;
 
    4. A letter which may be sent to your clients for whose accounts you hold
  Shares registered in your name or in the name of your nominees, with space
  provided for obtaining such client's instructions with regard to the Offer;
 
    5. Guidelines of the Internal Revenue Service for Certification of
  Taxpayer Identification Number on Substitute Form W-9; and
 
    6. A return envelope addressed to the Exchange Agent.
   
  Ahmanson will not pay any fees or commissions to any broker or dealer or any
other person (other than the fees of the Dealer Managers, the Information
Agent and the Exchange Agent as described in the Prospectus) in connection
with the solicitation of tenders of Shares and Rights pursuant to the Offer.
Ahmanson will, however, upon request, reimburse you for customary mailing and
handling expenses incurred by you in forwarding the enclosed materials to your
clients. Ahmanson will pay or cause to be paid any stock transfer taxes with
respect to the transfer and sale of Shares to it or its order pursuant to the
Offer, except as otherwise provided in Instruction 6 of the Letter of
Transmittal.     
   
  YOUR PROMPT ACTION IS REQUESTED. WE URGE YOU TO CONTACT YOUR CLIENTS AS
PROMPTLY AS POSSIBLE. THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT
12:00 MIDNIGHT, NEW YORK CITY TIME, ON       , 1997, UNLESS THE OFFER IS
EXTENDED. EXCEPT AS OTHERWISE PROVIDED IN THE PROSPECTUS OR THE LETTER OF
TRANSMITTAL, TENDERS ARE IRREVOCABLE.     
 
  In order to take advantage of the Offer, a duly executed and properly
completed Letter of Transmittal (or facsimile thereof), with any required
signature guarantees, or an Agent's Message in connection with a book-entry
transfer, and any other required documents, should be sent to the Exchange
Agent, and certificates evidencing the tendered Shares should be delivered or
such Shares should be tendered by book-entry transfer, all in accordance with
the instructions set forth in the Letter of Transmittal and the Prospectus.
   
  If holders of Shares wish to tender Shares, but it is impracticable for them
to forward their certificates or other required documents prior to the
Expiration Date or to complete the procedure for delivery by book-entry
transfer on a timely basis, a tender may be effected by following the
guaranteed delivery procedures specified under "The Offer--Procedure for
Tendering" in the Prospectus.     
 
  Any inquiries you may have with respect to the Offer should be addressed to
the Dealer Managers or the Information Agent at their respective addresses and
telephone numbers set forth on the back cover page of the Prospectus.
<PAGE>
 
   
  Additional copies of the enclosed materials may be obtained from the
undersigned, at Credit Suisse First Boston Corporation, telephone 1-800-704-
8076 (Toll Free) or Montgomery Securities, telephone 1-800-438-6571
(Toll Free) or by calling the Information Agent, MacKenzie Partners, Inc. at
[    ] (Toll Free), or from brokers, dealers, commercial banks or trust
companies.     
 
                                          Very truly yours,
                                             
                                          Credit Suisse First Boston
                                           Corporation     
                                          Montgomery Securities
 
  NOTHING CONTAINED HEREIN OR IN THE ENCLOSED DOCUMENTS SHALL CONSTITUTE YOU
OR ANY OTHER PERSON AS AN AGENT OF AHMANSON, THE DEALER MANAGERS, THE EXCHANGE
AGENT OR THE INFORMATION AGENT, OR ANY AFFILIATE OF ANY OF THE FOREGOING, OR
AUTHORIZE YOU OR ANY OTHER PERSON TO GIVE ANY INFORMATION OR USE ANY DOCUMENT
OR MAKE ANY STATEMENT ON BEHALF OF ANY OF THEM IN CONNECTION WITH THE OFFER
OTHER THAN THE ENCLOSED DOCUMENTS AND THE STATEMENTS CONTAINED THEREIN.

<PAGE>
 
                                                                 
                                                              EXHIBIT 99.(a)(5)
 
           OFFER TO EXCHANGE EACH OUTSTANDING SHARE OF COMMON STOCK
            
         (INCLUDING THE ASSOCIATED COMMON STOCK PURCHASE RIGHTS)     
 
                                      OF
 
                      GREAT WESTERN FINANCIAL CORPORATION
 
                                      FOR
                       
                    A NUMBER OF SHARES OF COMMON STOCK     
 
                                      OF
 
                           H. F. AHMANSON & COMPANY
                   
                EQUAL TO THE EXCHANGE RATIO STATED HEREIN     
    
 THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK
 CITY TIME, ON [DAY],    , 1997, UNLESS THE OFFER IS EXTENDED. SHARES WHICH
 ARE TENDERED PURSUANT TO THE OFFER MAY BE WITHDRAWN AT ANY TIME PRIOR TO
 THE EXPIRATION OF THE OFFER.     
 
To Our Clients:
   
  Enclosed for your consideration are the Prospectus dated March  , 1997 (the
"Prospectus") and the related Letter of Transmittal (which together constitute
the "Offer") in connection with the offer by H. F. Ahmanson & Company, a
Delaware corporation ("Ahmanson"), to exchange a number of shares of common
stock, par value $0.01 per share (the "Ahmanson Common Stock"), of Ahmanson
(such nominee, the "Exchange Ratio") determined by dividing $50 by the average
closing price of Ahmanson Common Stock on the New York Stock Exchange
(the "NYSE") on the 20 trading days ending on the [third] trading day prior to
the Expiration Date, subject to a maximum of 1.20 shares of Ahmanson Common
Stock and a minimum of 1.10 shares of Ahmanson Common Stock for each
outstanding share of Common Stock, par value $1.00 per share (each, a "Share"
and collectively the "Shares"), of Great Western Financial Corporation, a
Delaware corporation ("Great Western"), including the associated common stock
purchase rights (each a "Right" and collectively, the "Rights") issued
pursuant to the GWF Rights Plan, upon the terms and subject to the conditions
set forth in the Offer.     
 
  Stockholders whose certificates evidencing Shares ("Share Certificates") are
not immediately available or who cannot deliver their Share Certificates and
all other documents required by the Letter of Transmittal to the Exchange
Agent prior to the Expiration Date (as defined in the Prospectus) or who
cannot complete the procedure for delivery by book-entry transfer to the
Exchange Agent's account at a Book-Entry Transfer Facility (as defined in "The
Offer--Exchange of Shares, Delivery of Ahmanson Common Stock" in the
Prospectus) on a timely basis and who wish to tender their Shares must do so
pursuant to the guaranteed delivery procedure described in "The Offer--
Procedure for Tendering" in the Prospectus. See Instruction 2 of the Letter of
Transmittal. Delivery of documents to a Book-Entry Transfer Facility in
accordance with the Book-Entry Transfer Facility's procedures does not
constitute delivery to the Exchange Agent.
 
  THIS MATERIAL IS BEING FORWARDED TO YOU AS THE BENEFICIAL OWNER OF SHARES
HELD BY US FOR YOUR ACCOUNT BUT NOT REGISTERED IN YOUR NAME. WE ARE THE HOLDER
OF RECORD OF SHARES HELD BY US FOR YOUR ACCOUNT. A TENDER OF SUCH SHARES CAN
BE MADE ONLY BY US AS THE HOLDER OF RECORD AND PURSUANT TO YOUR INSTRUCTIONS.
THE LETTER OF TRANSMITTAL IS FURNISHED TO YOU FOR YOUR INFORMATION ONLY AND
CANNOT BE USED BY YOU TO TENDER SHARES HELD BY US FOR YOUR ACCOUNT.
 
  Accordingly, we request instructions as to whether you wish to have us
tender on your behalf any or all of the Shares held by us for your account,
upon the terms and subject to the conditions set forth in the Offer.
<PAGE>
 
  Please note the following:
     
    1. Ahmanson is offering to acquire each outstanding Share in exchange for
  a number of shares of Ahmanson Common Stock equal to the Exchange Ratio.
      
    2. The Offer is being made for all of the outstanding Shares.
 
    3. The Offer and withdrawal rights will expire at 12:00 Midnight, New
  York City time, on     , 1997, unless the Offer is extended.
     
    4. The Offer is conditioned upon, among other things, the Minimum Tender
  Condition, the Ahmanson Stockholder Approval Condition, the Rights Plan and
  DGCL 203 Condition, the GWF/WAMU Merger Agreement Condition and the
  Regulatory Approvals Condition (in each case as defined in the Prospectus).
  See "The Offer--Minimum Tender Condition," "Ahmanson Stockholder Approval
  Condition," "--GWF/WAMU Merger Agreement Condition," "--Regulatory
  Approvals Condition" and "--Certain Other Conditions of the Offer" in the
  Prospectus.     
 
    5. Tendering stockholders will not be obligated to pay brokerage fees or
  commissions or, except as set forth in Instruction 6 of the Letter of
  Transmittal, stock transfer taxes on the transfer of Shares pursuant to the
  Offer.
   
  The Offer is made solely by the Prospectus dated [     ]  , 1997 and the
related Letter of Transmittal and any amendments or supplements thereto and is
being made to all holders of Shares. The Offer is not being made to, nor will
tenders be accepted from or on behalf of, holders of Shares in any
jurisdiction in which the making or acceptance thereof would not be in
compliance with the laws of such jurisdiction. However, Ahmanson may, in its
sole discretion, take such action as it may deem necessary to make the Offer
in any such jurisdiction and extend the Offer to holders of Shares in such
jurisdiction. In any jurisdiction where the securities, blue sky or other laws
require the Offer to be made by a licensed broker or dealer, the Offer shall
be deemed to be made on behalf of Ahmanson by Credit Suisse First Boston
Corporation or Montgomery Securities, as Dealer Managers, or one or more
registered brokers or dealers licensed under the laws of such jurisdiction.
    
  If you wish to have us tender any or all of your Shares, please so instruct
us by completing, executing, detaching and returning to us the instruction
form contained in this letter. An envelope in which to return your
instructions to us is enclosed. If you authorize the tender of your Shares,
all such Shares will be tendered unless otherwise indicated in such
instruction form. PLEASE FORWARD YOUR INSTRUCTIONS TO US AS SOON AS POSSIBLE
TO ALLOW US AMPLE TIME TO TENDER SHARES ON YOUR BEHALF PRIOR TO THE EXPIRATION
OF THE OFFER.
<PAGE>
 
                       INSTRUCTIONS WITH RESPECT TO THE
           OFFER TO EXCHANGE EACH OUTSTANDING SHARE OF COMMON STOCK
            
         (INCLUDING THE ASSOCIATED COMMON STOCK PURCHASE RIGHTS)     
 
                                      OF
 
                      GREAT WESTERN FINANCIAL CORPORATION
 
                                      FOR
                       
                    A NUMBER OF SHARES OF COMMON STOCK     
       
                                      OF
 
                           H. F. AHMANSON & COMPANY
                   
                EQUAL TO THE EXCHANGE RATIO STATED HEREIN     
   
  The undersigned acknowledge(s) receipt of your letter and the enclosed
Prospectus, dated March  , 1997 (the "Prospectus"), and the related Letter of
Transmittal (which together constitute the "Offer") relating to the offer by
H. F. Ahmanson & Company, a Delaware corporation ("Ahmanson"), to exchange a
number of shares of Common Stock, par value 0.01 per share (the "Ahmanson
Common Stock"), of Ahmanson (such number, the "Exchange Ratio") determined by
dividing $50 by the average closing price of Ahmanson Common Stock on the New
York Stock Exchange (the "NYSE") on the 20 trading days ending on the [third]
trading day prior to the Expiration Date, subject to a maximum of 1.2 shares
of Ahmanson Common Stock and a minimum of 1.1 shares of Ahmanson Common Stock
for each outstanding share of Common Stock, par value $1.00 per share (each, a
"Share" and collectively, the "Shares"), of Great Western Financial
Corporation, a Delaware corporation ("Great Western") including the associated
common stock purchase rights (each, a "Right" and collectively, the "Rights")
issued pursuant to the GWF Rights Plan.     
 
  You are instructed to tender to Ahmanson the number of Shares indicated
below (or, if no number is indicated below, all Shares) that are held by you
for the account of the undersigned, upon the terms and subject to the
conditions set forth in the Offer.
 
    NUMBER OF SHARES TO BE                              SIGN HERE
          TENDERED:*                      -------------------------------------
 
                                          -------------------------------------
SHARES:
 
                                                      Signature(s)
Account Number: _______________           -------------------------------------
Dated: __________________, 1997           -------------------------------------
                                          Please Print Name(s) and Address(es)
                                                           Here
                                          -------------------------------------
                                            Area Code and Telephone Number(s)
                                          -------------------------------------
                                              Tax Identification or Social
- --------                                            Security Number(s)
* Unless otherwise indicated, it will be assumed that all of your Shares held
  by us for your account are to be tendered.

<PAGE>

                                                                  EXHIBIT 99.(f)

          PRELIMINARY COPY--SUBJECT TO COMPLETION, DATED MAY 14, 1997
 
                   [LETTERHEAD OF H. F. AHMANSON & COMPANY]
 
                                                                    May   , 1997
 
Dear Great Western Financial Corporation Stockholder:
 
  Both H. F. Ahmanson & Company and Washington Mutual, Inc. have presented
merger proposals to Great Western. On each of the   last trading days, the
Ahmanson proposal has had a higher implied market value than the Great Western
proposal. In addition, over the two longer term (one-year and three-year)
periods used by Great Western's own financial advisors, the implied average
market value of the Ahmanson offer has been greater. Moreover, we believe that
a number of other factors, such as market reaction to the two proposals and
credibility of projections, confirm that the Ahmanson proposal will provide
superior value to the Great Western stockholders.
 
  You can preserve your opportunity to receive this greater value from Ahmanson
only if you reject the Washington Mutual merger proposal at the Special Meeting
scheduled by the Great Western Board for June 13. In considering your vote you
should remember that: (i) the Great Western Board entered into discussions with
Washington Mutual, but not with Ahmanson; (ii) the Great Western Board provided
information to Washington Mutual, but not to Ahmanson; (iii) the Great Western
board rejected Ahmanson's proposal for an evaluation of the two proposals by an
independent investment banker; (iv) the Great Western Board has taken numerous
actions to prevent the stockholders from expressing their views; and (v) the
Great Western directors are recipients of an extraordinary program of
preferential loans involving millions of dollars. Are these the actions of a
board committed to the best interests of the Great Western stockholders?
 
             DO NOT SUPPORT THE INFERIOR WASHINGTON MUTUAL PROPOSAL
 
  Ahmanson is offering to acquire Great Western Financial Corporation in a tax-
free exchange of at least 1.10 and as much as 1.20 shares of Ahmanson Common
Stock for each share of Great Western Common Stock. The exact exchange ratio
would be determined by dividing $50 by the average closing price of Ahmanson
Common Stock during the 20 trading days ending on the third trading day prior
to the expiration date of the exchange offer, subject to a minimum ratio of
1.10 (which would apply when such average closing price is $45.45 or above) and
a maximum ratio of 1.20 (which would apply when such average closing price is
$41.67 or below).
 
  Based on the closing price of the Ahmanson Common Stock on May   , 1997 ($  )
and assuming the average closing price of the Ahmanson Common Stock during the
averaging period for the exchange offer is equal to such closing price, the
exchange ratio would be    and Ahmanson's offer would have an implied market
value of $     per Great Western share. The implied market value of Washington
Mutual's proposal on May   , 1997 was $    . On each of the last    trading
days, the implied market value of Ahmanson's proposal has exceeded the implied
market value of the proposed merger between Great Western and Washington Mutual
by between   % and   %. Moreover, under the longer term (one-year and three-
year) periods used by Great Western's own financial advisors, the Ahmanson
proposal has had a greater average market value of 3% and 15%, respectively.
<PAGE>
 
              PRESERVE YOUR OPPORTUNITY TO ACCEPT THE ALTERNATIVE
                     PROVIDING THE HIGHEST MARKET VALUE--
                   VOTE AGAINST THE WASHINGTON MUTUAL MERGER
 
  Ahmanson cannot complete its exchange offer if the Great Western stockholders
approve the Washington Mutual merger. Thus, Ahmanson urges you to vote against
the Washington Mutual merger and preserve your opportunity to accept Ahmanson's
exchange offer.
 
  The current Great Western Board can no longer prevent you, the true owners of
Great Western, from expressing your views. We urge you to take advantage of
this opportunity and the higher Ahmanson offer, and vote AGAINST the Washington
Mutual merger by signing, dating and returning the enclosed WHITE proxy card
today.
 
                                          Sincerely,
 
                                          /s/ Charles R. Rinehart
                                          _____________________________________
                                          Charles R. Rinehart
                                          Chairman and Chief
                                           Executive Officer
<PAGE>
 
                            YOUR PROXY IS IMPORTANT
 
Only stockholders of record on May 9, 1997 are entitled to vote. Thus:
 
1. If your shares of Great Western Common Stock are held in your own name,
   please mark, sign, date and return the enclosed WHITE proxy card in the
   postage-paid envelope provided.
 
2. If your shares of Great Western Common Stock are held in the name of a
   brokerage firm, bank, nominee or other institution, only it can vote with
   respect to your shares of Great Western Common Stock and only upon receipt
   of your specific instructions. Accordingly, you should contact the person
   responsible for your account and give instructions for a WHITE proxy card
   to be signed representing the shares of Great Western Common Stock
   beneficially owned by you. You are urged to ensure that the record holder
   of your shares of Great Western Common Stock marks, signs, dates and
   returns the enclosed WHITE proxy card as soon as possible.
 
3. You are further urged to confirm in writing any instructions given to your
   broker or bank and provide a copy of those instructions to H. F. Ahmanson &
   Company in care of MacKenzie Partners, Inc. so that Ahmanson may also
   attempt to ensure that such instructions are followed.
 
If you have any questions or require any assistance in completing your proxy
card, please call:
                      [LOGO OF MACKENZIE PARTNERS, INC.]
                               156 Fifth Avenue
                           New York, New York 10010
                         (212) 929-5500 (call collect)
                                      or
                        CALL TOLL-FREE: (800) 322-2888
<PAGE>
 
          PRELIMINARY COPY--SUBJECT TO COMPLETION, DATED MAY 14, 1997
 
                        SPECIAL MEETING OF STOCKHOLDERS
                                      OF
                      GREAT WESTERN FINANCIAL CORPORATION
 
                        RELATING TO THE PROPOSED MERGER
                         WITH WASHINGTON MUTUAL, INC.
 
                               ----------------
 
                                PROXY STATEMENT
                                      OF
                           H. F. AHMANSON & COMPANY
 
                               ----------------
 
                                 INTRODUCTION
 
  This Proxy Statement and the accompanying WHITE proxy card are furnished in
connection with the solicitation of proxies by H. F. Ahmanson & Company
("Ahmanson"), to be used at the Special Meeting of Stockholders of Great
Western Financial Corporation ("Great Western" or "GWF") to be held on Friday,
June 13, 1997 at GWF's Employee Center at 19809 Prairie Street, Chatsworth,
California 91311 at 10:00 a.m. local time, and any adjournments, postponements
or reschedulings thereof (the "Special Meeting").
 
  At the Special Meeting, the holders of record of GWF Common Stock on May 9,
1997, will be voting on whether to approve and adopt the Agreement and Plan of
Merger relating to a proposed merger between GWF and Washington Mutual, Inc.
("Washington Mutual" or "WaMu"). If the Great Western stockholders approve the
GWF/WaMu merger, they will relinquish the opportunity to accept the Ahmanson
exchange offer, which has a higher current market value and, in Ahmanson's
view, provides superior value. HOLDERS OF GWF COMMON STOCK ARE URGED TO MARK,
SIGN, DATE AND RETURN THE ENCLOSED WHITE PROXY CARD TO VOTE AGAINST THE
PROPOSED GWF/WAMU MERGER IN ORDER FOR AHMANSON'S EXCHANGE OFFER TO PROCEED.
 
  This proxy solicitation is being conducted separately from (i) the
solicitation of written consents from GWF stockholders to various proposals
previously conducted by Ahmanson (the results of which are set forth in Annex
A hereto), (ii) the proxy solicitation in connection with the 1997 Annual
Meeting of Stockholders of GWF currently being conducted by Ahmanson (a
description of which is set forth in Annex B hereto) and (iii) the exchange
offer currently being conducted by Ahmanson (described below).
 
  This proxy statement does not constitute an offer to exchange shares of GWF
Common Stock. Any such offer is only made pursuant to the registration
statement relating to the exchange offer described herein.
 
                                  BACKGROUND
 
  On February 17, 1997, Ahmanson submitted a written proposal to GWF for a
tax-free merger of the two companies (the "Original Proposal") pursuant to
which each outstanding share of GWF Common Stock (a "GWF Share") would be
converted into 1.05 shares of Ahmanson Common Stock. GWF refused to enter into
any discussions with Ahmanson about the Original Proposal. Instead, on March
6, 1997, GWF announced that it had entered into a merger agreement with WaMu
providing for a tax-free merger pursuant to which each outstanding GWF Share
would be converted into 0.90 shares of WaMu Common Stock. On March 17, 1997,
Ahmanson submitted an enhanced proposal (the "Ahmanson Merger Proposal") to
GWF for a merger of the two companies (the "Proposed Merger") pursuant to
which each outstanding GWF Share would be converted into between 1.10 and 1.20
shares of Ahmanson Common Stock. Although the Ahmanson proposal has
consistently had a higher market value (based on all closing prices since
April 8, 1997) than the WaMu proposal, the GWF Board of Directors has still
refused to engage in any discussions with Ahmanson.
 
                                       1
<PAGE>
 
  On May 12, 1997, Ahmanson announced its intention to commence an offer to GWF
stockholders (the "Exchange Offer"), subject to certain conditions, to exchange
each outstanding GWF Share for between 1.10 and 1.20 shares of Ahmanson Common
Stock, with the exact exchange ratio (the "Exchange Ratio") to be determined by
dividing $50 by the average closing price of Ahmanson Common Stock on the New
York Stock Exchange (the "NYSE") during the 20 trading days ending on the third
trading day prior to the expiration of the Exchange Offer (such 20-day period,
the "Averaging Period"), subject to a minimum ratio of 1.10 (which would apply
when such average closing price is $45.45 or above) and a maximum ratio of 1.20
(which would apply when such average closing price is $41.67 or below). On May
 , 1997 (the day the registration statement for the Exchange Offer was declared
effective), Ahmanson commenced the Exchange Offer. Ahmanson would intend,
promptly after consummation of the Exchange Offer, to seek to have GWF
consummate a merger with Ahmanson in which GWF Shares would be converted into
shares of Ahmanson Common Stock at the Exchange Ratio.
 
  Based on the closing price of the Ahmanson Common Stock on May , 1997 (and
assuming the average closing price of the Ahmanson Common Stock on the NYSE
during the Averaging Period is equal to such closing price), the Exchange Ratio
would be     and the Exchange Offer would have an implied market value of $
per GWF Share. The implied market value of the WaMu proposal on May   , 1997
was $  . On each of the    trading days prior to May   , 1997, the implied
market value of the Exchange Offer (assuming the average closing price of the
Ahmanson Common Stock on the NYSE during the Averaging Period were equal to its
closing price on each of those trading days) has exceeded the implied market
value of the proposed merger between GWF and WaMu by between   % and   %.
Moreover, under the two longer term (one-year and three-year) periods used by
GWF's own financial advisors, the Exchange Offer would have a greater average
market value of 3% and 15%, respectively. Changes in the market price of the
Ahmanson Common Stock before the date the GWF Shares are accepted for exchange
would affect the number of shares or the market value of Ahmanson Common Stock
to be received in the Exchange Offer in exchange for GWF Shares.
 
  The following table sets forth the Exchange Ratio and implied market value
per GWF Share that would result from the Exchange Offer over a range of market
prices for Ahmanson Common Stock from $32.00 to $46.00 per share (assuming for
each indicated market price of Ahmanson Common Stock that the average closing
price of Ahmanson Common Stock during the Averaging Period is equal to such
market price):
 
<TABLE>
<CAPTION>
       MARKET PRICE                                                        IMPLIED MARKET
       PER SHARE OF                                                      VALUE OF AHMANSON'S
         AHMANSON                   EXCHANGE                                  PROPOSAL
       COMMON STOCK                  RATIO                                  PER GWF SHARE
       ------------                 --------                             -------------------
       <S>                          <C>                                  <C>
       $32.00                        1.200                                     $38.40
        33.00                        1.200                                      39.60
        34.00                        1.200                                      40.80
        35.00                        1.200                                      42.00
        36.00                        1.200                                      43.20
        37.00                        1.200                                      44.40
        38.00                        1.200                                      45.60
        39.00                        1.200                                      46.80
        40.00                        1.200                                      48.00
        41.00                        1.200                                      49.20
        41.67                        1.200                                      50.00
        42.00                        1.190                                      50.00
        43.00                        1.163                                      50.00
        44.00                        1.136                                      50.00
        45.00                        1.111                                      50.00
        45.45                        1.100                                      50.00
        46.00                        1.100                                      50.60
</TABLE>
 
                                       2
<PAGE>
 
                        CHOICE BEFORE GWF STOCKHOLDERS
 
  As described above, Ahmanson has presented the stockholders of GWF with a
credible, viable alternative with a higher market value (based on all closing
stock prices since April 8, 1997) than the WaMu proposal. Nevertheless, the
Great Western Board has granted the WaMu proposal highly preferential
treatment, by entering into discussions with WaMu, but not with Ahmanson;
providing information to WaMu, but not to Ahmanson; providing a lock-up to
WaMu; and attacking Ahmanson in the press and before the regulatory agencies.
 
  The Special Meeting gives the Great Western stockholders, the true owners of
Great Western, the opportunity to express their views on the relative merits
of the Ahmanson and WaMu proposals. For the reasons set forth below, we
believe that the Ahmanson proposal provides superior value to the Great
Western Stockholders.
 
                      POSITION OF THE GREAT WESTERN BOARD
 
  The Great Western Board has described itself as "committed" to the WaMu
merger. We believe that this commitment has improperly superseded the Board's
obligation to maximize value for its stockholders. Would a board truly
committed to the best interests of its stockholders treat both bidders on
equal terms and encourage both bidders or would it take the following actions
with respect to two competing proposals:
 
  .Negotiate with one bidder, but not the other.
 
  .Provide material information to one bidder, but not the other.
 
  .Seek to block or delay regulatory approvals for one bidder, but not the
  other.
 
  .Publicly vilify one bidder in an effort to force it to terminate its bid.
 
  .  Take numerous actions to prevent and delay an opportunity for the
     stockholders to express their own views.
 
  In addition, the vote for directors enables Great Western stockholders to
send a powerful message on the issue of self-entrenchment. The Great Western
Board has taken the extraordinary action of awarding itself highly
preferential loans averaging well over $1,000,000 per director. Ahmanson
believes that these loans would violate federal law if made from Great Western
Bank rather than from Great Western Financial Corporation.
 
  In addition, the Great Western Board has provided executive management with
costly change in control compensation packages.
 
                 COMPARISON OF THE AHMANSON AND WAMU PROPOSALS
 
  Ahmanson believes that its proposal is superior to the proposed GWF-WaMu
merger proposal in virtually every relevant respect:
 
<TABLE>
 <C>                                <S>
 Current Implied Market Values....  The Ahmanson proposal has had a higher
                                    market value on each of the last trading
                                    days (between    % and    %).
 Long-Term Historical Implied
  Market Values...................  The Ahmanson proposal has had a higher
                                    average implied market value for the longer
                                    term (one-year and three-year) periods used
                                    by GWF's own financial advisers (3% and
                                    15%).
 Credibility of Projections.......  The WaMu projections have been questioned
                                    by a number of independent analysts; the
                                    Ahmanson projections have not been
                                    questioned.
 Comparison of Projections to
  Other Transactions..............  Although WaMu has argued that no other
                                    transaction can be relevant with respect to
                                    projections, the WaMu projections in
                                    relation to GWF's net income (130% of GWF's
                                    1996 "core" net income) far exceed those in
                                    any other major transaction.
</TABLE>
 
 
                                       3
<PAGE>
 
<TABLE>
 <C>                                <S>
 Market Position..................  An Ahmanson-GWF entity will have a far
                                    stronger market position in both California
                                    and Florida than a WaMu-GWF entity.
 Interest Rate Risk...............  Ahmanson believes that its exposure to
                                    interest rate risk is less than WaMu's
                                    exposure.
 Market Reaction to the
  Announcement of the Merger
  Proposal........................  Ahmanson-up 11%; WaMu-down 0.5%.
 Ability to Obtain Cost Savings...  Ahmanson has substantially greater
                                    geographic overlap, with about twice as
                                    many branches in the same market and
                                    headquarters in close geographic proximity.
 Capital Leveraging: Interest Rate
  and Credit Risk.................  Ahmanson intends to maintain its capital
                                    leverage at current levels through a
                                    repurchase program that has neither credit
                                    nor interest rate risk. WaMu proposes to
                                    leverage its balance sheet with additional
                                    loans, which creates both credit risk and
                                    interest rate risk.
 Ownership by GWF Stockholders in
  the Combined Entity.............  With Ahmanson--60% ; with WaMu--50%.
 Goodwill Litigation Claim........  Ahmanson has a claim which GWF's financial
                                    advisers valued, based on the trading price
                                    of securities of another claimant, at $4.36
                                    per share. WaMu has no equivalent claim.
 Multiple Integrations Risk.......  WaMu will be attempting to grow by 400%
                                    through acquisitions in one year.
</TABLE>
 
  AHMANSON URGES YOU TO MARK, SIGN, DATE AND RETURN THE ENCLOSED WHITE PROXY
CARD TO VOTE AGAINST THE GWF/WAMU MERGER.
 
  AHMANSON URGES YOU NOT TO SIGN ANY PROXY CARD SENT TO YOU BY GWF. IF YOU
HAVE ALREADY DONE SO, YOU MAY REVOKE YOUR PROXY BY DELIVERING A WRITTEN NOTICE
OF REVOCATION OR A SUBSEQUENTLY DATED PROXY CARD FOR THE SPECIAL MEETING TO
AHMANSON, C/O MACKENZIE PARTNERS, INC., OR TO THE SECRETARY OF GWF, OR BY
VOTING IN PERSON AT THE SPECIAL MEETING. SEE "PROXY PROCEDURES" BELOW.
 
  GWF has scheduled the Special Meeting for June 13, 1997, with a record date
for shares entitled to vote of May 9, 1997 (the "Record Date"). Stockholders
of record at the close of business on the Record Date will be entitled to one
vote at the Special Meeting for each GWF Share held on the Record Date. As of
the Record Date, there were approximately 137,922,037 GWF Shares issued and
outstanding. Ahmanson holds an aggregate of 3,560,500 GWF Shares, which
represents approximately 2.6% of the GWF Shares outstanding. Ahmanson intends
to vote such GWF Shares against the GWF/WaMu merger.
 
  Pursuant to Delaware law, the affirmative vote of the holders of a majority
of the shares of GWF Common Stock entitled to vote at the Special Meeting is
required to approve the GWF/WaMu merger proposal.
 
  Ahmanson is challenging the validity of the Special Meeting date and the
corresponding record date set by the GWF Board through litigation filed in the
Chancery Court in Delaware and is requesting a Special Meeting date that is at
least six weeks following the certification of the election of the Class II
Directors at the 1997 Annual Meeting of GWF stockholders also scheduled for
June 13, 1997.
 
                               ----------------
 
  This Proxy Statement and the WHITE Special Meeting proxy card are first
being furnished to GWF stockholders on or about May   , 1997. The principal
executive offices of Great Western Financial Corporation are located at 9200
Oakdale Avenue, Chatsworth, California 91311.
 
                                       4
<PAGE>
 
                            YOUR PROXY IS IMPORTANT
 
Only stockholders of record on the record date for the Special Meeting are
entitled to vote. Thus:
 
1. If your shares of Great Western Common Stock are held in your own name,
   please mark, sign, date and return the enclosed WHITE proxy card in the
   postage-paid envelope provided.
 
2. If your shares of Great Western Common Stock are held in the name of a
   brokerage firm, bank, nominee or other institution, only it can vote with
   respect to your shares of Great Western Common Stock and only upon receipt
   of your specific instructions. Accordingly, you should contact the person
   responsible for your account and give instructions for a WHITE proxy card
   to be signed representing the shares of Great Western Common Stock
   beneficially owned by you. You are urged to ensure that the record holder
   of your shares of Great Western Common Stock marks, signs, dates and
   returns the enclosed WHITE proxy card as soon as possible.
 
3. You are further urged to confirm in writing any instructions given to your
   broker or bank and provide a copy of those instructions to H. F. Ahmanson &
   Company in care of MacKenzie Partners, Inc. so that Ahmanson may also
   attempt to ensure that such instructions are followed.
 
If you have any questions or require any assistance in completing your proxy
card, please call:
                      [LOGO OF MACKENZIE PARTNERS, INC.]
                               156 Fifth Avenue
                           New York, New York 10010
                         (212) 929-5500 (call collect)
                                      or
                        CALL TOLL-FREE: (800) 322-2888
 
                                       5
<PAGE>
 
              THE AHMANSON EXCHANGE OFFER PROVIDES AN OPPORTUNITY
                         TO MAXIMIZE STOCKHOLDER VALUE
 
  On a number of occasions prior to 1996, the current and predecessor chief
executive officers of Ahmanson and GWF have informally discussed the
possibility of a merger of the two companies, although no agreements,
arrangements or understandings resulted from such discussions. These
discussions took place against the background of a rapidly changing banking
industry undergoing substantial consolidation, primarily as a result of
increased competition and a need to reduce costs through economies of scale.
In addition, Ahmanson believes that in recent years, the two companies have
been pursuing compatible business strategies. Both Ahmanson and GWF have
initiated a change in focus away from the traditional business of savings
institutions toward consumer banking services and fee-based income. In
addition, both companies have pursued a strategy of branch acquisitions in
selected "core" markets and branch divestitures in non-core markets and have
engaged in active capital management through stock repurchases (GWF suspended
its stock repurchase program upon announcement of its proposed merger with
WaMu).
 
  In light of the foregoing, on February 17, 1997, Charles R. Rinehart,
Chairman of the Board and Chief Executive Officer of Ahmanson, contacted John
F. Maher, President and Chief Executive Officer, of GWF and delivered to him a
written proposal for a tax-free merger of the two companies pursuant to which
each outstanding GWF Share would be converted into 1.05 shares of Ahmanson
Common Stock. GWF did not respond to this proposal and did not hold any
discussions with Ahmanson, but entered into negotiations with WaMu and one
other party. On March 5, 1997, GWF entered into a merger agreement with WaMu
providing for a tax-free merger pursuant to which each outstanding share of
GWF Common Stock would be converted into 0.90 shares of WaMu Common Stock.
 
  On March 17, 1997, Ahmanson submitted the enhanced Ahmanson Merger Proposal.
On May 12, 1997, Ahmanson announced its intention to commence the Exchange
Offer. On May   , 1997 (the day the registration statement for the Exchange
Offer was declared effective), Ahmanson commenced the Exchange Offer.
 
  Based on the closing price of the Ahmanson Common Stock on the NYSE on May
  , 1997 ($   ), and assuming the average closing price of the Ahmanson Common
Stock on the NYSE during the Averaging Period is equal to such closing price,
the Exchange Ratio would be     and the Exchange Offer would have an implied
market value of $   per GWF Share. The implied market value of the WaMu
proposal on May   , 1997 was $  . On each of the    trading days prior to May
  , 1997, the implied market value of the Exchange Offer (assuming the average
closing price of the Ahmanson Common Stock on the NYSE during the Averaging
Period were equal to its closing price on each of those trading days) has
exceeded the implied market value of the proposed merger between GWF and WaMu
by between   % and   %. Moreover, under the two longer term (one-year and
three-year) periods used by GWF's own financial advisors, the Exchange Offer
would have a greater average market value of 3% and 15%, respectively. Changes
in the market price of Ahmanson Common Stock before the date the GWF shares
would be accepted for exchange would affect the number of shares or the market
value of Ahmanson Common Stock to be received in the Exchange Offer in
exchange for GWF Shares.
 
  Ahmanson believes that a combination with GWF represents a unique and
compelling opportunity to enhance value for stockholders of both Ahmanson and
GWF, allowing the combined company to realize substantial cost savings while
enhancing its competitive position in its major markets, generating enhanced
revenues and providing improved services and products to its customers.
Specifically, Ahmanson believes that a merger of the two companies would (a)
result in accretion to cash earnings per share (i.e., reported earnings before
amortization of intangibles) of 8% in 1998 and 20% in 1999, and accretion to
reported earnings per share of 2% for 1999, (assuming the maximum Exchange
Ratio of 1.20), and accretion to cash earnings per share of 14% in 1998 and
27% in 1999 and accretion to reported earnings per share of 5% in 1999
(assuming the minimum Exchange Ratio of 1.10), (b) allow the combined company
to realize cost savings estimated at approximately $450 million per year
(Ahmanson expects to be able to achieve substantially all of such annual
savings within 15 months after closing the Proposed Merger), (c) enhance the
combined company's competitive position in its major markets in California,
where the combined company would rank third (with about
 
                                       6
<PAGE>
 
$50 billion in deposits), and in Florida, where the combined company would
rank fifth (with about $10 billion in deposits), (d) generate enhanced
revenues for the combined company of at least $50 million annually by 1998 and
(e) provide additional scale in key business lines (mortgage lending, loan
servicing, consumer and small business lending and investment services). Based
on the advice of Sullivan & Cromwell, special counsel to Ahmanson, as well as
Ahmanson's experience in obtaining approvals for other transactions, Ahmanson
believes that it will be able to obtain the regulatory approvals required for
the Exchange Offer on a timely basis and without imposition of any condition
that would have a material adverse effect on the combined company. Ahmanson
further believes that its projections are more credible than those of WaMu and
that a combined Ahmanson-GWF entity would have a stronger market position in
its core markets (California and Florida) and a lower interest rate risk than
a WaMu-GWF entity. Ahmanson also notes that the initial market reaction to the
announcement of its merger proposal was enthusiastic (an 11% increase in
Ahmanson's market price on the day after announcement) while the reaction to
the WaMu proposal was tepid (a decline of 0.5%).
 
  Ahmanson believes that the GWF Board (who collectively own beneficially less
than 1.5% and appear to actually own less than 0.4% of the GWF Common Stock)
should not deprive GWF's stockholders of the opportunity to consider
Ahmanson's exchange offer along with the proposed GWF/WaMu merger. GWF has
characterized the incumbent GWF directors as "independent". However, all but
one of these directors have very large home mortgage loans from Great Western,
ranging in amount from over $500,000 to almost $2,500,000, at highly
preferential interest rates which represent a discount of approximately one-
third from market rates. Ahmanson believes that these loans would violate
federal law if made from Great Western Bank rather than from Great Western
Financial Corporation.
 
  If GWF's stockholders do not approve the GWF/WaMu merger agreement, Ahmanson
believes that at that point (and in light of the GWF stockholders' ability, if
necessary, to adopt a by-law accelerating the next annual meeting of GWF
stockholders to January 2, 1998 and to elect a majority of the Board of
Directors, including those to be elected at the Annual Meeting, by that date),
the GWF Board would respect the vote of GWF's stockholders and remove the
obstacles it is maintaining to Ahmanson's exchange offer. Ahmanson also
intends to pursue its currently pending litigation in order to remove those
obstacles.
 
  Ahmanson continues to seek to enter into a negotiated merger agreement with
GWF based on the Ahmanson Merger Proposal submitted to the GWF Board on March
17, 1997, which proposed a merger of Ahmanson and GWF pursuant to which GWF
Shares would be converted into shares of Ahmanson Common Stock at an exchange
ratio identical to the Exchange Ratio for the Exchange Offer, except that the
exchange ratio in the Ahmanson Merger Proposal would be determined based on an
average closing price for Ahmanson Common Stock on the 20 trading days
preceding the approval of the proposed merger by the Office of Thrift
Supervision (the "OTS") (rather than 20 trading days ending on the trading day
prior to the Expiration Date, as in the case of the Exchange Offer). Ahmanson
reserves the right to amend the Exchange Offer, including upon entering into a
merger agreement with GWF, or to negotiate a merger agreement with GWF not
involving an exchange offer and pursuant to which Ahmanson would terminate the
Exchange Offer and the GWF Shares would, upon consummation of such merger, be
converted into shares of Ahmanson Common Stock, cash and/or other securities
in such amounts as are negotiated by Ahmanson and GWF. Ahmanson would expect
that any such merger agreement would include conditions to the consummation of
the merger that are substantially the same as the conditions contained in the
GWF/WaMu merger agreement, except that a GWF/Ahmanson merger would not be
conditioned on the qualification of such merger for "pooling of interests"
accounting treatment.
 
  The purpose of this Proxy Statement is to enable the GWF stockholders to
decide for themselves which proposal is superior and to act accordingly.
Ahmanson cannot complete the Exchange Offer if the GWF Stockholders approve
the GWF/WaMu merger agreement. Thus, Ahmanson urges GWF Stockholders to vote
against the GWF/WaMu merger agreement and preserve the opportunity to accept
Ahmanson's Exchange Offer. If stockholders do not approve and adopt the
GWF/WaMu merger agreement, Ahmanson believes the GWF Board will respect the
stockholders' vote, remove the obstacles it is maintaining to the completion
of Ahmanson's Exchange Offer (e.g., the GWF Rights) and allow the Exchange
Offer to proceed.
 
 
                                       7
<PAGE>
 
                          COMPARISON OF THE PROPOSALS
 
  Included in the WaMu Proxy Statement related to the Special Meeting is a
list of the factors considered by the GWF Board as material in selecting
WaMu's proposal over the Ahmanson Merger Proposal. Conspicuously absent from
that list is any consideration of the implied purchase price produced by each
of the two proposals. On all but two days since Ahmanson announced the
Ahmanson Merger Proposal on March 17, 1997, the Ahmanson Merger Proposal has
produced a market value higher than the market value produced by the proposed
GWF/WaMu merger. On May   , 1997 (the last trading day prior to the date of
this Proxy Statement) the differential (assuming the average closing price of
the Ahmanson Common Stock during the Averaging Period is equal to the closing
price on that date) amounted to $   per GWF Share, and the aggregate market
value of the Exchange Offer exceeded the aggregate market value of the
proposed GWF/WaMu merger by approximately $   million. Moreover, Ahmanson
believes (based on public filings by GWF) that GWF's asserted reasons for
favoring the WaMu proposal were erroneous in a number of significant respects
and that these reasons do not justify the rejection of the Ahmanson Merger
Proposal with its higher market value.
 
<TABLE>
<CAPTION>
         GWF'S LISTED REASON                          THE FACTS
         -------------------                          ---------
 <C>                                  <S>
 1. Capital. Ahmanson's capital       Home Savings' capital exceeds the
    ratios are too low.               standards for qualification as "well
                                      capitalized", the highest regulatory
                                      capital category. The OTS has not found
                                      it necessary to prescribe specific
                                      capital ratios for holding companies, and
                                      Ahmanson's capital levels have not been
                                      criticized by rating agencies or
                                      analysts. WaMu's projected tangible
                                      common equity ratio (which is not a
                                      regulatory ratio, but has been focused on
                                      by GWF) would rank it approximately 397th
                                      out of the 409 publicly traded thrifts
                                      (with data available as of year-end
                                      1996).

 2. Presence in California. A         A combined Ahmanson-GWF Company would
    combined GWF-WaMu would have      have a 45% higher market share in
    "the same position in             California.
    California" as a combined 
    Ahmanson-GWF Company.

 3. Banking Initiatives. GWF's        By almost every relevant measure--growth
    strategy would be "hindered"      in consumer loans, commercial loans,
    because Ahmanson's efforts to     demand deposit accounts, cash management
    become more bank-like "lagged"    services, and fee income--Ahmanson's
    behind those of GWF.              efforts have exceeded those of GWF.

 4. Significant Acquisition           Only one of those acquisitions for which
    Experience.  WaMu has             integration has been completed had assets
    "successfully integrated          in excess of $750 million ($750 million
    numerous significant              is less than 2% of the size of GWF). In
    acquisitions since 1990."         contrast, Ahmanson has had five
                                      acquisitions involving more than $750
                                      million in assets.

 5. Technology Incompatibility.       Ahmanson has expeditiously and
    Ahmanson's ability to obtain      successfully integrated a large Hogan
    cost savings will be hampered by  deposit system (in the First Interstate
    technology incompatibility,       transaction, which is the deposit system
    while WaMu's ability to obtain    used by GWF). Ahmanson and GWF use the
    cost savings will be advanced by  same systems for mortgage servicing and
    technology compatibility.         consumer lending, and GWF approached
                                      Ahmanson to license Ahmanson's mortgage
                                      origination system. In addition, the
                                      customization of GWF's and WaMu's Hogan
                                      deposit systems reduce compatibility.
</TABLE>
 
 
                                       8
<PAGE>
 
<TABLE>
<CAPTION>
         GWF'S LISTED REASON                          THE FACTS
         -------------------                          ---------
 <C>                                   <S>
  6. Net Interest Margin/Interest      WaMu's net interest margin has declined
     Rate Risk. WaMu's higher net      almost 150 basis points since 1992.
     interest margin.                  Because of WaMu's higher percentage of
                                       fixed-rate loans and higher percentage of
                                       funding from wholesale funds, Ahmanson
                                       believes that WaMu's net interest income
                                       is significantly more vulnerable to
                                       interest rate risk than Ahmanson's.

  7. Credit Position. WaMu has a       One of the two major credit rating
     stronger credit position than     agencies ranks Ahmanson higher than WaMu.
     Ahmanson

  8. Different Strategies. GWF and     In almost all respects, the strategies of
     Ahmanson have pursued different   Ahmanson and GWF have been closer than
     strategies, while GWF and WaMu    the strategies of WaMu and GWF.
     have pursued similar strategies.
                                       (i) Capital Management. Both Ahmanson and
                                       GWF implemented major stock buy-back
                                       programs. WaMu asserts that it has not
                                       implemented such a program.

                                       (ii) Geographic Focus. Both Ahmanson and
                                       GWF focused on California and Florida,
                                       states with large populations and major
                                       urban areas. WaMu has not entered Florida
                                       and has made non-core acquisitions in a
                                       number of sparsely populated western
                                       states (e.g., Montana and Idaho).

                                       (iii) Acquisitions. Ahmanson and GWF had
                                       bid on the same acquisition targets
                                       (e.g., First Interstate branch
                                       divestitures and the Home Federal branch
                                       sale). Conversely, neither Ahmanson nor
                                       GWF has bid on acquisition targets on
                                       which WaMu has bid (e.g., American
                                       Savings Bank and acquisitions in Utah,
                                       Montana and Idaho).

                                       (iv) Mortgage Lending: GWF and Ahmanson
                                       retain almost entirely adjustable rate
                                       mortgages. WaMu continues to make and
                                       retain a significant number of fixed-rate
                                       mortgage loans and, through American
                                       Savings Bank, COFI-based mortgage loans.

  9. Exposure to Commercial Real       WaMu's percentage of commercial real
     Estate. Ahmanson has greater      estate loans to assets is about three
     exposure to commercial real       times greater than Ahmanson's percentage.
     estate than WaMu.

 10. Ahmanson's Stock Buy-Back         The analyst community has not been
     Program. Concern about the level  critical of Ahmanson's buy-back program.
     of Ahmanson's stock buy-back      Indeed, Ahmanson's strategy has been
     program and the impact on         widely applauded by the analyst community
     leverage.                         as promoting stockholder value.
                                       Ahmanson's stock buy-back program is a
                                       flexible way to maintain leverage. In
                                       contrast, WaMu will increase its leverage
                                       through aggressive loan expansion ($18
                                       billion in 30 months), with attendant
                                       credit risk, interest rate risk or both.
                                       GWF itself adopted a substantial buy-back
                                       program.
</TABLE>
 
 
                                       9
<PAGE>
 
<TABLE>
<CAPTION>
         GWF'S LISTED REASON                          THE FACTS
         -------------------                          ---------
 <C>                                  <S>
 11. Credit Quality. Concern about    Based on key indicators, Ahmanson's
    Ahmanson's credit quality.        credit quality has been improving
                                      sharply. This reflects the ability of
                                      Ahmanson's management to deal with
                                      California's serious economic problems in
                                      the first half of this decade. WaMu's
                                      management has not been tested in a
                                      downward economic cycle. In the 12-month
                                      period ended March 31, 1997, Ahmanson's
                                      nonperforming assets declined 19%, while
                                      WaMu's nonperforming assets increased.

 12. Efficiency. WaMu has a better    As a result of Ahmanson's focus on cost
    efficiency ratio than Ahmanson.   reduction, its efficiency ratio in the
                                      two most recent fiscal quarters is equal
                                      to that of WaMu.
</TABLE>
 
  In addition, there is no indication in the public filings that the GWF Board
considered any of the following factors material:
 
  .  The higher current market value of Ahmanson's proposal. On all but two
     days since Ahmanson announced the Ahmanson Merger Proposal on March 17,
     1997, the Ahmanson Merger Proposal has produced a market value higher
     than the market value produced by the proposed GWF/WaMu Merger.
 
  .  Ahmanson's ability to attain greater cost savings because of the
     substantially greater geographic overlap. Ahmanson has twice as many
     branches in GWF's market (and vice versa) as WaMu, and the corporate
     headquarters of Ahmanson and GWF are 48 miles apart as opposed to the
     1,100 mile separation between the corporate headquarters of WaMu and
     GWF.
 
  .  The far more enthusiastic market response to the announcement of
     Ahmanson's Original Proposal than to the announcement of the proposed
     GWF/WaMu Merger. Ahmanson's stock price rose 11%; WaMu's stock price
     declined 0.5%.
 
  .  Ahmanson's lower interest rate risk than WaMu's (which divergence is
     likely to be increased by WaMu's projected loan growth). WaMu has
     considerably higher dependence on wholesale funding, fixed-rate loans
     and COFI-based loans.
 
  .  The greater ownership by GWF stockholders in a combined Ahmanson-GWF
     company (approximately 60%) than in a combined WaMu-GWF company
     (approximately 50%).
 
  .  The considerably stronger market position of an Ahmanson-GWF company
     than a WaMu-GWF company in Florida.
 
  .  The potential value of Ahmanson's goodwill litigation claim (WaMu has no
     equivalent claim).
 
  .  The potential value of Ahmanson's federal tax claim relating to states
     branching rights (WaMu has no equivalent claim).
 
  .  Ahmanson's management experience in Florida and consumer finance, where
     WaMu has none.
 
  AHMANSON URGES YOU TO VOTE AGAINST THE GWF/WAMU MERGER AGREEMENT AND
PRESERVE YOUR OPPORTUNITY TO ACCEPT AHMANSON'S EXCHANGE OFFER. IF YOU WANT THE
AHMANSON EXCHANGE OFFER TO SUCCEED, VOTE AGAINST THE GWF/WAMU MERGER AGREEMENT
BY SIGNING, DATING AND RETURNING THE ENCLOSED WHITE PROXY CARD TODAY.
 
                                      10
<PAGE>
 
                    PRIOR CONSENT SOLICITATION AND CURRENT
                       ANNUAL MEETING PROXY SOLICITATION
 
  Prior to the mailing of this Proxy Statement, Ahmanson conducted a
solicitation of written consents from GWF stockholders to various proposals. A
description of these proposals and a summary of the results of the consent
solicitation are set forth in Annex A hereto. Ahmanson is also currently
conducting a separate proxy solicitation from GWF stockholders for the
election of the Ahmanson Nominees as Class II Directors of GWF in addition to
various proposals to amend the current by-laws of GWF. A description of the
proxy solicitation, the Ahmanson Nominees and the proposed By-law amendments
is set forth in Annex B hereto.
 
             OTHER MATTERS TO BE CONSIDERED AT THE SPECIAL MEETING
 
  Ahmanson is not aware of any other resolutions, matters or proposals to be
brought before the Special Meeting. Should other resolutions, matters or
proposals be brought before the Special Meeting, the persons named on the
WHITE Special Meeting proxy card will abstain from voting on such other
resolutions, matters or proposals unless such other resolutions, matters or
proposals are inconsistent with the effort to vote against the GWF/WaMu
Merger, to elect the Ahmanson Nominees (as set forth in Annex A hereto) and to
adopt the By-law Amendments (as set forth in Annex B hereto) as set forth
herein, in which event such persons will vote on such other resolutions,
matters or proposals at their discretion. When voting on any proposed
adjournment, such persons named as proxies may vote for or against the
proposed adjournment at their discretion.
 
  With respect to any such matters that may be submitted to the GWF
stockholders for a vote, the affirmative vote of the holders of at least a
majority of the GWF Shares represented in person or by proxy at the Special
Meeting and entitled to vote on the particular matter is required, assuming
the presence of a quorum at the Special Meeting. With respect to abstentions,
the GWF Shares will be considered present at the Special Meeting for such
matters, but since they are not affirmative votes for such matters, they will
have the same effect as votes against such matters. With respect to broker
non-votes, the GWF Shares will not be considered present at the Special
Meeting for purposes of voting on the such matters. Consequently, broker non-
votes will not be counted with respect to such matters, but they will have the
practical effect of reducing the number of affirmative votes required to
achieve a majority with respect to such matters by reducing the total number
of GWF Shares from which the majority is calculated.
 
                                      11
<PAGE>
 
                           H. F. AHMANSON & COMPANY
 
  H. F. Ahmanson & Company, a Delaware corporation, conducts its principal
business operations through Home Savings, a federally chartered savings bank.
Although Home Savings has traditionally focused on deposit-taking and
residential real estate lending, Home Savings has changed its focus toward
becoming a full-service consumer and small business bank. Home Savings'
acquisition of 61 First Interstate Bank branches has accelerated Home Savings'
progress toward effecting this change.
 
  At March 31, 1997, Ahmanson had total assets of $49 billion, deposits of $34
billion and stockholders' equity of $2.4 billion. Based on deposits, Ahmanson
was at that time the third largest depository institution in California and
the 19th largest in the United States.
 
  Ahmanson is subject to the informational requirements of the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), and in accordance
therewith, files reports, proxy statements and other information with the
Securities and Exchange Commission (the "Commission"). Proxy statements,
reports and other information concerning Ahmanson can be inspected at the
Commission's office at 450 Fifth Street, N.W., Washington, D.C. 20549, and at
the Commission's Regional Offices in New York, 7 World Trade Center, Suite
1300, New York, New York 10048, and Citicorp Center, 500 West Madison Street,
Chicago, Illinois 60601, and copies of such material can be obtained from such
facilities and the Public Reference Section of the Commission at 450 Fifth
Street, N.W., Washington, D.C. 20549, at prescribed rates. Certain of such
reports, proxy statements and other information are also available from the
Commission over the Internet at http://www.sec.gov. In addition, such material
can be inspected at the offices of the New York Stock Exchange, 20 Broad
Street, New York, New York 10005 and the Pacific Stock Exchange, 301 Pine
Street, San Francisco, California 94104, on which certain of Ahmanson's
securities are listed.
 
  H. F. Ahmanson & Company has its principal executive offices at 4900
Rivergrade Road, Irwindale, California 91706, telephone number (818) 960-6311.
 
  Certain information concerning the directors and executive officers of
Ahmanson and certain employees and other representatives of Ahmanson who may
also solicit proxies from stockholders is set forth in Schedule I. Certain
information concerning shares of GWF Common Stock held by Ahmanson, its
directors and executive officers and certain employees and other
representatives of Ahmanson who may also solicit proxies from stockholders,
and certain transactions between any of them and GWF, is set forth in Schedule
II.
 
                               PROXY PROCEDURES
 
  In order for your views on the above-described competing merger proposals to
be represented at the Special Meeting, please mark, sign and date the enclosed
WHITE Special Meeting proxy card and return it to Ahmanson, c/o MacKenzie
Partners, Inc., in the enclosed envelope in time to be voted at the Special
Meeting. Execution of the WHITE Special Meeting proxy card will not affect
your right to attend the Special Meeting and to vote in person. Any proxy may
be revoked at any time prior to the Special Meeting by delivering a written
notice of or a later dated proxy for the Special Meeting to Ahmanson or to the
Secretary of GWF, or by voting in person at the particular meeting. Only your
latest dated Proxy for the Special Meeting will count.
 
  Only holders of record as of the close of business on the Record Date will
be entitled to vote at the Special Meeting. If you are a GWF stockholder of
record on the Record Date, you will retain your voting rights for the Special
Meeting even if you sell such GWF Shares after the Record Date. Accordingly,
it is important that you vote the GWF Shares held by you on the Record Date,
or grant a proxy to vote such GWF Shares on the WHITE Special Meeting proxy
card, even if you sell such GWF Shares after the Record Date.
 
  If any of your GWF Shares are held in the name of a brokerage firm, bank,
bank nominee or other institution on the Record Date, only it can vote such
GWF Shares and only upon receipt of your specific instructions. Accordingly,
please contact the person responsible for your account and instruct that
person to execute on your behalf the WHITE Special Meeting proxy card.
 
                                      12
<PAGE>
 
                         OWNERSHIP OF GWF COMMON STOCK
 
  Each share of GWF Common Stock is entitled to one vote, and the GWF Common
Stock is the only class of securities of GWF currently entitled to vote.
According to GWF's Form 10-K for the fiscal year ended December 31, 1996,
there were approximately 9,724 holders of record of shares of GWF Common Stock
as of December 31, 1996, and, according to GWF's Proxy Statement dated May 12,
1997, there were 137,922,037 shares of GWF Common Stock outstanding as of
March 31, 1997. Stockholders of GWF do not have cumulative voting rights.
 
  The following table sets forth the share ownership of (i) all persons who,
as of March 31, 1997, beneficially owned more than 5% of GWF's outstanding
shares of Common Stock known to GWF, as reported in GWF's Proxy Statement for
the Annual Meeting, dated May 12, 1997, (ii) Ahmanson as of the date of this
Proxy Statement, and (iii) all directors and officers of GWF as a group as of
March 31, 1997, as reported in GWF's Proxy Statement for the Annual Meeting,
dated May 12, 1997. There may have been material changes since that date.
 
<TABLE>
<CAPTION>
                                            AMOUNT AND NATURE OF    PERCENT OF
                                           BENEFICIAL OWNERSHIP OF OUTSTANDING
NAME AND ADDRESS OF BENEFICIAL OWNER       SHARES OF COMMON STOCK  COMMON STOCK
- ------------------------------------       ----------------------- ------------
<S>                                        <C>                     <C>
Wellington Management Company............         8,771,730(1)         6.37%
 75 State Street
 Boston, Massachusetts 02109
Vanguard/Windsor Funds, Inc. ............         8,236,786(2)         5.98%
 100 Vanguard Boulevard
 P.O. Box 2600
 Malvern, Pennsylvania 19355
H.F. Ahmanson & Company..................         3,560,500             2.6%
 4900 Rivergrade Road
 Irwindale, CA 91706
All Directors and Executive Officers as a         2,238,251(3)         1.62%
 Group...................................
</TABLE>
- --------
(1) Wellington Management Company ("WMC") has reported that it is an
    investment adviser and, as such, is considered beneficial owner in the
    aggregate of the shares listed in the table. WMC has declared that it has
    shared power to vote 53,902 of the shares and shared dispositive power
    over all of the shares shown in the table. The shares shown in the table
    for the Vanguard/Windsor Funds, Inc. are also included in the total amount
    reported in the table for WMC.
(2) The Vanguard/Windsor Funds, Inc. ("Vanguard/Windsor") has reported that it
    is an investment company and, as such, is considered the beneficial owner
    in the aggregate of the shares listed in the table. Vanguard/Windsor has
    declared that it has sole power to vote or direct the vote and shared
    power to dispose or to direct the disposition of the shares shown in the
    table.
(3) The amount in the table includes options to purchase 2,013,991 shares
    under employee stock options which are exercisable on or within 60 days of
    May 9, 1997, and 1,219 shares held in trust under the Employee Savings
    Incentive Plan with respect to which such persons have the right to direct
    the vote.
 
  For information relating to the ownership of GWF Shares by the current
directors and officers of GWF, see Schedule III hereto.
 
  Although Ahmanson has included information concerning GWF in this Proxy
Statement (including Schedule III hereto) insofar as it is known or reasonably
available to Ahmanson, Ahmanson is not currently affiliated with GWF and GWF
has not to date permitted access by Ahmanson to GWF's books and records.
Therefore, information concerning GWF which has not been made public is not
available to Ahmanson. Although Ahmanson has no knowledge that would indicate
that statements relating to GWF contained in this Proxy Statement in reliance
upon publicly available information are inaccurate or incomplete, Ahmanson was
not involved in the preparation of such information and statements and, for
the foregoing reasons, is not in a position to verify any such information or
statements.
 
                                      13
<PAGE>
 
                            SOLICITATION OF PROXIES
 
  Proxies will be solicited by mail, telephone, telegraph, telex, telecopier,
advertisement and in person. Solicitation may be made by directors, officers,
investor relations personnel and other regular employees of Ahmanson. No such
employees will receive additional compensation for such solicitation.
 
  Banks, brokerage houses and other custodians, nominees and fiduciaries will
be requested to forward the solicitation materials to the beneficial owners of
GWF Common Stock for which they hold of record and Ahmanson will reimburse
them for their reasonable out-of-pocket expenses.
 
  In addition, Ahmanson has retained MacKenzie Partners, Inc. to assist and to
provide advisory services in connection with this Proxy Statement for which
MacKenzie Partners, Inc. will be paid a fee of not more than $250,000 and will
be reimbursed for reasonable out-of-pocket expenses. It is anticipated that
approximately 100 persons will be employed by MacKenzie Partners, Inc. to
solicit proxies. Ahmanson will indemnify MacKenzie Partners, Inc. against
certain liabilities and expenses in connection with the Proxy Statement,
including liabilities under the federal securities laws.
 
  Credit Suisse First Boston Corporation ("CSFB") and Montgomery Securities
("Montgomery Securities") are providing certain financial advisory services to
Ahmanson in connection with, among other things, the Proposed Merger. Ahmanson
has agreed to pay each of CSFB and Montgomery Securities for its financial
advisory services an aggregate financial advisory fee of $9.0 million in the
case of CSFB and $7.0 in the case of Montgomery Securities. The fees are
payable as follows: (i) in the case of CSFB, (a) $1.5 million upon its
engagement, (b) $1.5 million upon public announcement by Ahmanson of its
intention to acquire GWF, (c) $1.5 million upon execution of a definitive
agreement relating to a merger of GWF and Ahmanson and (d) $4.5 million upon
consummation of a merger of GWF and Ahmanson, and (ii) in the case of
Montgomery Securities, (a) $0.5 million upon its engagement, (b) $0.5 million
upon public announcement by Ahmanson of its intention to acquire GWF, (c) $1.5
million upon execution of a definitive agreement relating to a merger of GWF
and Ahmanson and (d) $4.5 million upon consummation of a merger of GWF and
Ahmanson. Ahmanson has also agreed to reimburse each of CSFB and Montgomery
Securities for its reasonable out-of-pocket expenses, including the fees and
expenses of its legal counsel, incurred in furtherance of the financial
advisory services to be provided to Ahmanson in connection with its
engagement, and has agreed to indemnify each of CSFB and Montgomery Securities
and certain related persons and entities against certain liabilities and
expenses in connection with its engagement, including certain liabilities
under the federal securities laws. In connection with CSFB's and Montgomery
Securities' engagement as financial advisors, Ahmanson anticipates that
certain employees of each of CSFB and Montgomery Securities may communicate in
person, by telephone or otherwise with a limited number of institutions,
brokers or other persons who are stockholders for the purpose of assisting in
the proxy solicitation. CSFB and Montgomery Securities will not receive any
fee for or in connection with such solicitation activities apart from the fees
they are otherwise entitled to receive as described above.
 
  The expenses related directly to the Proxy Statement are expected to
aggregate $1,950,000 and will be borne by Ahmanson. These expenses include any
fees and expenses for attorneys, public relations and financial advisers,
solicitors, advertising, printing, transportation, litigation and other costs
incidental to the solicitation, but exclude costs represented by salaries and
wages of regular employees and officers of Ahmanson and expenses related
primarily to the Proposed Merger. Of the above stated amount, approximately
$300,000 has been spent to date. Ahmanson does not intend to seek
reimbursement of its expenses related to the proxy solicitation from GWF
whether or not the proxy solicitation is successful.
 
  Stockholder proposals will be eligible for consideration for inclusion in
GWF's Proxy Statement for the 1998 Annual Meeting of Stockholders if notice is
provided to the Secretary of GWF no later than 60 days nor more than 90 days
prior to the anniversary date of the 1997 Annual Meeting.
 
  If you have any questions concerning this Proxy Statement or the procedures
to be followed to execute and deliver a proxy, please contact MacKenzie
Partners, Inc. at the address or phone number specified below. YOUR
 
                                      14
<PAGE>
 
PROXY AND PROMPT ACTION ARE IMPORTANT. YOU ARE URGED TO GRANT YOUR PROXY BY
MARKING, SIGNING, DATING AND RETURNING THE ENCLOSED WHITE PROXY CARD AS SOON
AS POSSIBLE.
 
                                          H. F. AHMANSON & COMPANY
 
May [ ], 1997
                      [LOGO OF MACKENZIE PARTNERS, INC.]
                               156 Fifth Avenue
                           New York, New York 10010
               Bankers and Brokers Call Collect: (212) 929-5500
                   All Others Call Toll-Free: (800) 322-2885
 
 
                                      15
<PAGE>
 
                                                                        ANNEX A
 
                     AHMANSON'S PRIOR CONSENT SOLICITATION
 
  Prior to the mailing of this Proxy Statement, Ahmanson conducted a
solicitation of written consents from GWF stockholders to proposals (a) urging
the GWF Board, among other things, to engage in discussions and negotiations
with Ahmanson or any other person making a bona fide and concrete merger
proposal (Consent Proposal 1), (b) urging the GWF Board not to grant excessive
lock-up arrangements that could deter a merger or similar transaction
maximizing stockholder value unless GWF stockholders approve the arrangement
(Consent Proposal 2), (c) requiring GWF to hold its annual meeting of
stockholders on the fourth Tuesday in April in each year, or on a date within
14 days thereof (Consent Proposal 3), (d) preventing the adjournment of any
meeting of stockholders at which a quorum is present unless all business
properly brought has been acted upon by the GWF stockholders (Consent Proposal
4) and (e) preventing the GWF Board from subsequently amending any of the by-
laws adopted pursuant to the Consent Solicitation unless it has the approval
of a majority of the GWF stockholders (Consent Proposal 5). Under the Delaware
General Corporation Law, stockholder action taken by written consent is
effective at the time that valid, unrevoked consents representing the number
of shares required to take the action are delivered to the corporation. Each
of Ahmanson's Consent Proposals required a majority of outstanding GWF Shares
for adoption.
 
  On April 9, 1997, Ahmanson announced that it had delivered to GWF consents
to Consent Proposals 3, 4 and 5 that represented more than the requisite
majority of the outstanding GWF Shares. This announcement was based on
Ahmanson's calculations. The results were not certified at that time, however,
and Ahmanson could not have known with certainty at that time the exact number
of revocations of such consents that might have been delivered directly to GWF
by April 9. The adoption of Consent Proposals 3, 4 and 5 was certified on
April 28, 1997 by CT Corporation, the independent inspectors of election
appointed by GWF. However, in tabulating consents, CT Corporation counted as
valid a consent card representing an inadvertent double vote by a GWF
stockholder (who had requested that CT Corporation not consider the double
vote). Ahmanson had never relied on the double voted shares for its majority
of consents on the three Proposals, and Ahmanson formally requested the
inspectors to recertify the tabulation of consents, excluding any shares that
may have been double counted. On May 5, 1997, CT Corporation re-certified the
adoption of Consent Proposal 3 as of April 9, 1997 and, on May 12, 1997, CT
Corporation re-certified the adoption of Consent Proposals 4 and 5 as of April
10, 1997. GWF filed an action in Delaware court disputing CT Corporation's
original certification of the adoption of Proposals 3, 4 and 5. Although this
action is pending, Ahmanson is confident that GWF's litigation will not
materially affect the certified results on Consent Proposals 3, 4 and 5.
 
  Based on the certified results for Consent Proposal 3, the amendment to the
GWF By-laws requiring GWF to hold the GWF Annual Meeting by May 6, 1997 was
adopted by the holders of a majority of the outstanding GWF Shares on April 9,
1997. On that date, Ahmanson amended its complaint in Delaware court to seek
an order compelling GWF to hold the GWF Annual Meeting in accordance with the
amended By-law adopted by GWF stockholders. On April 11, 1997, GWF announced
that the Annual Meeting would be held on June 13, 1997, with a record date for
stockholders entitled to vote as of May 9, 1997. The meeting date set by GWF
is more than one month after the date required by the new By-law amendment
adopted by GWF stockholders and 21 days after the date on which a Delaware
court may order GWF to hold the Annual Meeting under Delaware law. As result
of the delay in GWF's acknowledgment of the adoption of the new By-law
amendment and GWF's apparent disregard of its original By-law, which required
the GWF Board to call a special stockholders' meeting for the election of
directors to be held as soon as practicable after the designated day (April
22, 1997), Ahmanson believes that it is no longer practicable for GWF to hold
the Annual Meeting on a date meaningfully before June 13. Accordingly,
Ahmanson informed the Delaware Chancery Court on May 8, 1997 that it would no
longer seek to advance the date for the GWF Annual Meeting. Ahmanson is
seeking, however, an injunction requiring a six-week period of time between
the certification of the result of the election of directors at the Annual
Meeting and any special stockholders' meeting called by GWF for the purpose of
approving the proposed GWF/WaMu merger. The Delaware Chancery Court has
scheduled a hearing on Ahmanson's request for injunctive relief for May 30,
1997.
 
                                      A-1
<PAGE>
 
  On April 11, 1997, Ahmanson announced that it had delivered to GWF consents
to the adoption of Consent Proposal 1 that represented more than the requisite
majority of the outstanding GWF Shares. This announcement was based on
Ahmanson's calculations. The results have not been tabulated or certified by
CT Corporation, however, and Ahmanson could not have known with certainty on
April 11 the exact number of revocations of such consents that might have been
delivered directly to GWF by that date. CT Corporation has stated that it will
officially tabulate consents with respect to Consent Proposal 1 only if GWF
instructs it as to the record date for the stockholders entitled to give
consents or otherwise authorizes CT Corporation to do so. GWF claims that the
record date set by the GWF Board for the Consent Solicitation no longer
applied to Consent Proposal 1 after it was revised by Ahmanson on March 17,
1997 in response to GWF's entering into a merger agreement with WaMu, and GWF
is unwilling to otherwise authorize CT Corporation to tabulate. However, based
on Ahmanson's review of the consent cards and revocations during the challenge
process relating to Consent Proposals 3, 4 and 5, Ahmanson is confident that,
if CT Corporation were permitted to tabulate the results, that tabulation
would show that Consent Proposal 1 was adopted by the requisite majority of
outstanding GWF Shares no later than April 14, 1997 (although probably not on
April 11). Ahmanson filed a complaint in Delaware court on April 14, 1997
which seeks an order declaring that the record date for Consent Proposal 1 was
March 13, 1997 and compelling a tabulation and report of the consents
delivered on Consent Proposal 1. Ahmanson's action is still pending.
 
  Consents representing the number of GWF Shares necessary to adopt Consent
Proposal 2 were never delivered and Ahmanson is no longer soliciting consents.
 
  The full text of each of the Consent Proposals is set forth below:
 
  Consent Proposal 1: Adopt the following non-binding resolution:
 
  "RESOLVED, that the stockholders of Great Western Financial Corporation
  ("Great Western") urge the Great Western Board of Directors (the "Great
  Western Board"), if requested by H. F. Ahmanson & Company ("Ahmanson") or
  any other person making a bona fide and concrete merger proposal, to
  provide all nonpublic information given to Washington Mutual, Inc. to
  Ahmanson or such other person and to participate in discussions and
  negotiations with, and consider each and every bona fide and concrete
  merger proposal made by, Ahmanson or such other person and otherwise to
  facilitate any effort or attempt by Ahmanson or such other person to make
  or implement a merger proposal in order to maximize stockholder value.
  Furthermore, in evaluating any merger proposal, the Great Western Board
  shall take into account the potential that the Great Western Stockholders
  will receive a substantial portion of the value of the cost savings
  resulting from a merger with Ahmanson or, if applicable, such other
  person."
 
  Consent Proposal 2: Adopt the following non-binding resolution:
 
  "RESOLVED, that the stockholders of Great Western Financial Corporation
  ("Great Western") urge the Great Western Board of Directors (the "Great
  Western Board") not to grant, without the prior approval of a majority of
  the stockholders of Great Western having voting power, third party break-up
  fees, stock options, "crown jewel" options or other lock-up arrangements in
  connection with an "Acquisition Transaction" as hereinafter defined, unless
  such agreement contains a provision ensuring that the aggregate value of
  all such break-up fees, stock options, "crown jewel" options and other
  lock-up arrangements can never exceed $100,000,000; "Acquisition
  Transaction" means any merger, consolidation or similar transaction
  involving, or any purchase of all or any substantial portion of the assets,
  deposits or any equity securities of, Great Western or any of its
  subsidiaries."
 
  Consent Proposal 3: Amend Section 2 of the By-laws of GWF by replacing the
first sentence thereof with the following sentence:
 
  "The annual meeting of the stockholders of the Corporation shall be held on
  the fourth Tuesday in April in each year, or on a date within 14 days
  thereof, at such time and place, within or without the State of Delaware,
  as may be specified in the notice thereof, as shall be fixed by the Board
  of Directors, for the purpose of electing directors and for the transaction
  of only such other business as is properly brought before such meeting in
  accordance with these by-laws."
 
                                      A-2
<PAGE>
 
  Consent Proposal 4: Amend Section 6 of the By-laws of GWF by replacing the
first sentence thereof with the following three sentences:
 
  "The holders of a majority of the stock of the Corporation having voting
  power present in person or by proxy shall constitute a quorum. In the event
  a quorum is not present, the presiding officer at the meeting or the
  stockholders present, although less than a quorum, shall have the power to
  adjourn or postpone such meeting from time to time without notice. In the
  event that a quorum is present, the presiding officer shall not take any
  action to adjourn such meeting until all business properly brought before
  such meeting has been acted upon by the stockholders of the Corporation."
 
  Consent Proposal 5: Amend the By-laws of GWF by adding a new Section 25
thereto which reads in its entirety as follows:
 
  "Section 25. Neither this Section 25 nor any of the By-law provisions added
  or changed by consent of stockholders as contemplated by the Consent
  Statement dated March 3, 1997, provided by H. F. Ahmanson & Company, may be
  amended or repealed without the affirmative vote of the holders of a
  majority of the stock of the Corporation having voting power."
 
 
                                      A-3
<PAGE>
 
                                                                        ANNEX B
 
          ELECTION OF AHMANSON NOMINEES AS CLASS II DIRECTORS OF GWF
 
  Ahmanson announced on February 18, 1997 (the same day it announced the
Original Proposal) that it had determined to nominate three individuals (the
"Ahmanson Nominees"), each of the Ahmanson Nominees, none of whom is a
director, officer or employee of Ahmanson, and each of whom has committed that
they will act on behalf of all of the Great Western stockholders and not at
the direction of Ahmanson.
 
  A second slate of nominees, proposed by the incumbent Great Western
directors (all but one of whom have substantial loans at preferential rates
from Great Western), is committed to a proposed merger with Washington Mutual
and refuses to engage in discussions with or provide information to Ahmanson.
They take this position despite the fact that Ahmanson made a proposal with a
higher market value (based on all closing stock prices since April 8, 1997)
than the Washington Mutual proposal. GWF has characterized the incumbent GWF
directors as "independent". However, all but one of these directors have very
large home mortgage loans from Great Western, ranging in amount from over
$500,000 to almost $2,500,000, at highly preferential interest rates which
represent a discount of approximately one-third from market rates. Ahmanson
believes that these loans would violate federal law if made from Great Western
Bank rather than from Great Western Financial Corporation.
 
  The Ahmanson Nominees have agreed that as directors they will act "on behalf
of all of the stockholders of [GWF] . . . and will in no way be controlled by
or acting at the direction of Ahmanson." Ahmanson has agreed to make a
contribution of $15,000 to charity on behalf of each Ahmanson Nominee and has
agreed to indemnify the Ahmanson Nominees. They have committed to seek to
convince the other GWF directors to pursue merger proposals with a view to
maximizing stockholder value. In particular, the Ahmanson Nominees have
committed to seek to convince the other GWF directors to consider the Ahmanson
Merger Proposal and all other bona fide and concrete proposals to merge with
GWF and, subject to their fiduciary duties, actively pursue the proposal that
they conclude maximizes value for GWF's stockholders. Any such proposal would,
of course, then be subject, among other things, to stockholder and regulatory
approval.
 
  In light of the agreement of the Ahmanson Nominees to act on behalf of all
of the GWF stockholders and the fiduciary duties that they will owe to GWF
stockholders, Ahmanson would expect that the Ahmanson Nominees (a) would
support the conduct of negotiations and discussions with any company that
makes a bona fide proposal and support whichever proposal provides the best
value to GWF stockholders, whether that proposal is made by WaMu, Ahmanson or
a third party, and (b) would support the solicitation of offers by other
parties if they determine that doing so is in the best interests of the GWF
stockholders and would support the removal of any barriers to a sale that are
likely to reduce the value to be received by the GWF stockholders. Any such
actions to be taken by the Ahmanson Nominees would be subject to the
provisions of the GWF/WaMu Merger Agreement, which require that certain
actions to facilitate merger proposals from third parties be taken only after
a determination by the GWF Board that the failure to take such actions would
create a reasonable possibility of a breach of its fiduciary duties.
 
  If the Ahmanson Nominees are elected, the Ahmanson Nominees will constitute
a minority of the eleven member GWF Board and, therefore, the Ahmanson
Nominees would not, without the support of other members of the GWF Board, be
able to take action to terminate the GWF/WaMu Merger Agreement or to cause GWF
to enter into a merger agreement with Ahmanson or any other third party or
remove any barriers to consummation of the Exchange Offer. If adopted,
however, the Ahmanson By-law Amendments would, among other things, ensure that
the Ahmanson Nominees are consulted on certain actions by the GWF Board that
could make a merger with or an acquisition of GWF more difficult or more
expensive or would favor one potential acquirer over another. The Ahmanson
Nominees will, however, attempt to persuade the board to treat all merger
proposals on the same basis if they believe that such an approach maximizes
stockholder value.
 
  Ahmanson's nomination of three, rather than four, nominees for the four
directorships to be filled at the Annual Meeting is intended to avoid a
presumption of control under regulations of the OTS. Under those
 
                                      B-1
<PAGE>
 
regulations, Ahmanson would generally not be permitted to obtain proxies
representing 25% or more of the outstanding GWF Shares to elect one-third or
more of the directors on the GWF Board without obtaining prior OTS approval or
a rebuttal of a control presumption under OTS regulations.
 
  The Ahmanson Nominees are listed below and have furnished the following
information concerning their principal occupations or employment and certain
other matters. Each Ahmanson Nominee, if elected, would hold office until the
2000 Annual Meeting of Stockholders and until a successor has been elected and
qualified or until the earlier of his death, resignation or removal. Should
GWF purport to increase the number of directors to be elected at the Annual
Meeting, it is the current intention of Ahmanson to propose additional
nominees for such directorships. In that event, Ahmanson would promptly
supplement this Proxy Statement to provide additional information regarding
those nominees in order to give GWF stockholders the maximum possible time to
consider such nominations, although the length of time between any prompt
updating of this Proxy Statement for the purposes of the Annual Meeting may in
certain circumstances be beyond Ahmanson's control.
 
                   AHMANSON NOMINEES FOR CLASS II DIRECTORS:
 
<TABLE>
<CAPTION>
          NAME, AGE AND           PRINCIPAL OCCUPATION AND BUSINESS EXPERIENCE
   PRINCIPAL BUSINESS ADDRESS    DURING LAST FIVE YEARS; CURRENT DIRECTORSHIPS
   --------------------------    ---------------------------------------------
 <C>                             <S>
 Lawrence A. Del Santo, 63...... Mr. Del Santo is currently retired. From 1994
 1115 Busch Garden Court         until his retirement in 1997, Mr. Del Santo
 Pasadena, CA 91105              was Chairman and Chief Executive Officer of
                                 The Vons Companies, Inc. Previously, he was
                                 Chairman and Chief Executive Officer of Lucky
                                 Stores ("Lucky") and after the American
                                 Stores Company acquisition of Lucky, he
                                 became Senior Executive Vice President and
                                 Chief Operating Officer--Food for American
                                 Stores Company in 1993. He currently serves
                                 on the board of directors of California
                                 Business Roundtable, Los Angeles Area Chamber
                                 of Commerce, Food Marketing Institute,
                                 Criminal Justice Legal Foundation, Los
                                 Angeles Business Advisors and Super Valu
                                 Stores, Inc. Additionally, he is a member of
                                 the Board of Trustees of the University of
                                 San Francisco and the Tomas Rivera Center.
 Robert T. Gelber, 61........... Mr. Gelber is currently retired. Before his
 Gibson, Dunn & Crutcher LLP     retirement, Mr. Gelber was a partner at
 333 South Grand Avenue          Gibson, Dunn & Crutcher LLP, where he was co-
 Los Angeles, CA 90071           head of the firm's Financial Institutions
                                 Practice Group. Mr. Gelber joined Gibson,
                                 Dunn & Crutcher LLP in 1960 after graduation
                                 from Harvard Law School.
 Wolfgang Schoellkopf, 64....... Mr. Schoellkopf is currently retired. From
 800 Fifth Avenue                1990 until his retirement in 1996, Mr.
 New York, NY 10021              Schoellkopf was Vice Chairman and Chief
                                 Financial Officer of First Fidelity
                                 Bancorporation. Mr. Schoellkopf currently
                                 serves on the boards of directors of Great
                                 Lakes Reinsurance Corporation, the Inner-City
                                 Scholarship Fund and Marymount University.
</TABLE>
 
  Ahmanson has agreed to make a cash contribution of $15,000 on behalf of each
Ahmanson Nominee to a charitable organization designated by each Ahmanson
Nominee for agreeing to be named as a nominee and agreeing to stand for
election as a director of GWF and has agreed to reimburse each Ahmanson
Nominee for out-of-pocket expenses incurred in connection with the proxy
solicitation. In addition, Ahmanson has agreed, without regard to any actual
or alleged fault on the part of the Ahmanson Nominee, to hold harmless and
indemnify each Ahmanson Nominee, to the fullest extent permitted by applicable
law, from and against any and all expenses, liabilities, damages or losses of
any kind arising out of or relating to any threatened or filed action, suit or
proceeding, whether civil, criminal, administrative or investigative
(including an action by or in the right of GWF), asserted against or incurred
by the Ahmanson Nominee as a result of such Ahmanson Nominee's involvement in
the proxy solicitation or such Ahmanson Nominee's role as a director of GWF
(except to the extent such Ahmanson Nominee is covered in full by GWF's
indemnification obligations); provided, however,
 
                                      B-2
<PAGE>
 
that such indemnification and expense reimbursement shall not apply to any
actions or omissions to act by the Ahmanson Nominee after the date 20 days
after the Ahmanson Nominee has been notified that Ahmanson has abandoned the
Ahmanson Merger Proposal. In addition, it is anticipated that each Ahmanson
Nominee, if elected, would be entitled to receive director's fees consistent
with GWF's past practices. According to GWF's Proxy Statement, dated May 12,
1997, for the Annual Meeting, non-employee directors of GWF are paid an annual
retainer for board service of $25,000, and an attendance fee of $1,800 and
$1,000 for each board and committee meeting attended, respectively. Directors
are also reimbursed for any expenses incurred in connection with attendance at
regular or special meetings of the board or any of its committees.
 
  None of the Ahmanson Nominees is a director, officer or employee of Ahmanson
or has any contractual relationship with Ahmanson other than his nominee
agreement with Ahmanson, which is described above. Except as disclosed in this
Proxy Statement, to the best knowledge of Ahmanson, none of the Ahmanson
Nominees or their associates have any arrangement or understandings with any
person (1) with respect to any future employment by GWF or its affiliates or
(2) with respect to future transactions to which GWF or any of its affiliates
will or may be a party, nor any material interest, direct or indirect, in any
transaction that has occurred since January 1, 1996 or any currently proposed
transaction, or series of similar transactions, in which GWF or any of its
affiliates was or is to be a party and in which the amount involved exceeds
$60,000. Certain Ahmanson Nominees may also be directors or officers of other
companies and organizations that have engaged in transactions with GWF or its
subsidiaries in the ordinary course of business since January 1, 1996, but
Ahmanson believes that the interest of such Ahmanson Nominees in such
transactions is not of material significance. Mr. Gelber receives retirement
benefits from Gibson, Dunn & Crutcher LLP, the amount of which is dependent on
that firm's net income. Gibson, Dunn & Crutcher LLP has represented Ahmanson
from time to time in various matters. None of the Ahmanson Nominees has any
other interest in any transactions with Ahmanson or its affiliates. In light
of the agreement of the Ahmanson Nominees to act on behalf of all of the GWF
stockholders and the fiduciary duties that they will owe to GWF stockholders,
Ahmanson would expect that the Ahmanson Nominees (a) would support the conduct
of negotiations and discussions with any company that makes a bona fide
proposal and support whichever proposal provides the best value to GWF
stockholders, whether that proposal is made by WaMu, Ahmanson or a third
party, and (b) would support the solicitation of offers by other parties if
they determine that doing so is in the best interests of the GWF stockholders
and would support the removal of any barriers to a sale that are likely to
reduce the value to be received by the GWF stockholders. All such actions
would be taken by the Ahmanson Nominees as permitted by, and in accordance
with, the GWF/WaMu merger agreement as discussed above.
 
  Elections of directors at the Annual Meeting require the affirmative vote of
a majority of the GWF Shares represented in person or by proxy at the meeting
and entitled to vote on the election of directors, assuming a quorum is
present or otherwise represented at the Annual Meeting. Thus, assuming a
quorum is present, the four nominees receiving the greatest number of votes
will be elected to serve as Class II Directors. Non-voted shares with respect
to the election of directors will not affect the outcome of the election of
directors.
 
             PROPOSED BY-LAW AMENDMENTS FOR THE GWF ANNUAL MEETING
 
  Ahmanson is soliciting proxies for the Annual Meeting of Stockholders in
support of the Ahmanson By-law amendments which are intended to ensure that
the Ahmanson Merger Proposal is dealt with fairly and in accordance with sound
principles of corporate governance and that the views of the GWF stockholders
and the Ahmanson Nominees are considered by the entire GWF Board. The text of
each of the Ahmanson By-law Amendments and a summary of its effect is set
forth below.
 
  Amendment 1. Amend Section 3 of the By-laws of GWF by adding to the end
thereof the following paragraph:
 
  "In addition, a special meeting of the stockholders of the Corporation shall
be called by the Secretary upon the written request, stating the purpose of
the meeting and the meeting date, of stockholders who together own
 
                                      B-3
<PAGE>
 
of record 10% or more of the stock of the Corporation having voting power. The
notice shall be mailed by the Secretary within 20 days following receipt of
such request. If the Secretary fails to call the special meeting and mail the
notice as required by the preceding sentence, a person designated by the
stockholders requesting the meeting shall have the power to call the special
meeting and mail such notice. At a special meeting called at the request of
stockholders, the meeting shall be presided over by a person designated by the
stockholders calling the meeting."
 
  Amendment 1 would amend GWF's By-laws to allow holders of 10% of the GWF
Shares to call special meetings and provide that the designee of the
stockholders calling the meeting presides at the meeting. The calling of a
special meeting by stockholders could cause GWF to incur certain expenses and
administrative burdens that it would not otherwise incur under its existing
corporate governance arrangements, but Ahmanson believes that, in light of
GWF's refusal to deal evenhandedly with the Ahmanson Merger Proposal despite
the majority support of the GWF stockholders for a stockholder resolution
urging it to do so, the potential benefit to stockholders of increasing the
opportunities to express their views outweighs such burdens.
 
  Amendment 2. Amend Section 12 of the By-laws of GWF by adding to the end
thereof (or, if Amendment 3 described below is adopted, by adding as the
penultimate paragraph) the following paragraph:
 
  "No person may be chosen by the directors of the Corporation to fill any
vacancy on the board of directors, whether arising through death, resignation
or removal of a director, or through an increase in the number of directors of
any class, if such person was previously nominated as a director and lost in
an election by the stockholders of the Corporation."
 
  Amendment 2 would amend GWF's By-laws to prohibit the GWF Board from filling
any vacancy on the GWF Board with any person who was previously nominated as a
Director and lost in an election. The effect of Amendment 2 is to prevent the
GWF Board from reinstalling a person whom the stockholders have affirmatively
voted out of office or not elected. Ahmanson recognizes that a vote for one
director-nominee is not necessarily intended as a vote against the alternative
nominee. However, this proposal would prevent the entrenchment of directors
who, although they may be qualified to serve as directors, have failed to
obtain the requisite support of stockholders.
 
  Amendment 3. Amend Section 12 of the By-laws of GWF by adding to the end
thereof the following paragraph:
 
  "Any slate of directors elected in opposition to the recommendation of the
incumbent board of directors shall be represented on an executive committee of
the board of directors of the Corporation, if one is created, or on any other
committee of the board that exercises powers that are currently or would
normally be exercised by such a committee or only by the full board, including
the power to review any merger proposal."
 
  Amendment 3 would amend GWF's By-laws to ensure that, if any Ahmanson
Nominees are elected, at least one Ahmanson Nominee would be represented on an
executive committee of the GWF Board, if one is created, or on any other
committee of the GWF Board that exercises powers that are currently or would
normally be exercised by an executive committee or only by the full GWF Board,
including the power to review any merger proposal. The effect of Amendment 3
would be to prevent an executive or similar committee of the GWF Board from
taking actions without the knowledge of or input from an Ahmanson Nominee.
Ahmanson does recognize, however, that the intentional failure on the part of
one or more members of the board of directors of a corporation to provide
information to certain other members of the board could, under certain
circumstances, constitute a breach of fiduciary duty to the stockholders.
 
  Amendment 4. Amend Section 13 of the By-laws of GWF by inserting immediately
after the second sentence thereof the following two sentences:
 
  "Notwithstanding the foregoing sentence, if any of the following actions are
to be considered by the board of directors at a meeting, notice must be given
which notice must specify that such actions are to be considered
 
                                      B-4
<PAGE>
 
and set forth appropriate details with respect thereto: any "Acquisition
Transaction" as hereinafter defined, amendment of the Rights Agreement
referred to in Section 24, adoption of any similar rights agreement, amendment
of the By-laws, or any other action that would preclude or make more expensive
or more difficult a merger with or acquisition of the Corporation by any
person that has made a bona fide proposal to merge with or acquire the
Corporation or that would favor one potential acquiror of the Corporation over
another acquiror. "Acquisition Transaction" means any merger, consolidation or
similar transaction involving, or any purchase of all of or any substantial
portion of the assets, deposits or any equity securities of, the Corporation
or any of its subsidiaries."
 
  Amendment 4 would amend GWF's By-laws to provide that certain matters (e.g.,
acquisition transactions, amendment of the Rights Agreement, adoption of any
similar rights agreement, amendment of the By-laws, or any other action that
would preclude or make more expensive or more difficult a merger with or an
acquisition of GWF by any person that has made a bona fide and concrete
proposal to merge with or acquire GWF or would favor one potential acquirer
over another) can only be acted on by the GWF Board if those matters are
specifically described (with appropriate details) in a notice which must be
given for the GWF Board meeting. The effect of Amendment 4 would provide the
Ahmanson Nominees with advance notice of such actions. Because the Ahmanson
Nominees will have fiduciary duties to all stockholders, this does not mean
that Ahmanson will be privy to such information. This advance notice will
enable the Ahmanson Nominees to act in a prepared manner and receive any
necessary independent advice.
 
  Amendment 5. Amend Section 25 of the By-laws of GWF by adding to the end
thereof the following sentence:
 
  "In addition, none of the By-law provisions added or changed by vote of
stockholders at the 1997 annual meeting of stockholders of this Corporation
may be amended or repealed without the affirmative vote of the holders of a
majority of the stock of the Corporation having voting power."
 
  Amendment 5 would amend GWF's By-laws to prevent the GWF Board from
subsequently amending any of the Ahmanson By-law Amendments adopted at the
1997 Annual Meeting of Stockholders unless it has the approval of a majority
vote of the GWF stockholders. The effect of Amendment 5 would ensure that the
GWF Board cannot circumvent the will of the stockholders by subsequently
amending or modifying the adopted Ahmanson By-law Amendments.
 
  If the GWF Board and GWF stockholders approve the Proposed Merger and it is
consummated, Ahmanson expects that the by-laws of the combined company would
be the current by-laws of Ahmanson. Those by-laws do not contain the
provisions proposed by Amendments 1 through 5 above.
 
  Adoption of the Ahmanson By-law Amendments requires the affirmative vote of
the holders of a majority of the GWF Shares represented in person or by proxy
and entitled to vote on the matter, assuming the presence of a quorum at the
Annual Meeting. With respect to abstentions, the GWF Shares will be considered
present at the Annual Meeting, but since they are not affirmative votes for
the Ahmanson By-law Amendments, they will have the same effect as votes
against the Ahmanson By-law Amendments. With respect to broker non-votes, the
GWF Shares will not be considered present at the Annual Meeting for purposes
of voting on the Ahmanson By-law Amendments. Consequently, broker non-votes
will not be counted with respect to the Ahmanson By-law Amendments, but they
will have the practical effect of reducing the number of affirmative votes
required to achieve a majority with respect to the Ahmanson By-law Amendments
by reducing the total number of GWF Shares from which the majority is
calculated.
 
                                      B-5
<PAGE>
 
                                  SCHEDULE I
 
                     INFORMATION CONCERNING THE DIRECTORS
                      AND EXECUTIVE OFFICERS OF AHMANSON
              AND CERTAIN EMPLOYEES AND OTHER REPRESENTATIVES OF
                     AHMANSON WHO MAY ALSO SOLICIT PROXIES
 
  The following table sets forth the name, principal business address and the
present office or other principal occupation or employment, and the name,
principal business and address of any corporation or other organization in
which such employment is carried on, of the directors and executive officers
of Ahmanson and certain employees and other representatives of Ahmanson who
may also solicit proxies from stockholders of GWF. The Ahmanson Nominees may
also solicit proxies from stockholders of GWF.
 
 DIRECTORS, EXECUTIVE OFFICERS, CERTAIN EMPLOYEES AND OTHER REPRESENTATIVES OF
                                   AHMANSON
 
<TABLE>
<CAPTION>
       NAME AND PRINCIPAL                   PRESENT OFFICE OR OTHER
        BUSINESS ADDRESS               PRINCIPAL OCCUPATION OR EMPLOYMENT
       ------------------              ----------------------------------
 <C>                             <S>
 Byron Allumbaugh............... Retired Chairman of the Board of Ralphs
 620 Newport Center Drive        Grocery Company, a Los Angeles-based
 Suite 1100                      supermarket company; director of El Paso
 Newport Beach, CA 92660         Natural Gas Company and Ultramar Corp.
 Harold A. Black................ James F. Smith Professor of Financial
 Department of Finance           Institutions at the College of Business
 431 Stokely Management Center   Administration at the University of
 University of Tennessee,        Tennessee, Knoxville
 Knoxville
 Knoxville, TN 37996
 Richard M. Bressler............ Retired Chairman of the Board of Plum Creek
 El Paso Natural Gas Company     Management Company, a manufacturer of lumber
 999 Third Avenue, Suite 2300    and wood products, and retired Chairman of
 Seattle, WA 98104               the Board of El Paso Natural Gas Company, a
                                 natural resources company; director of
                                 General Mills, Inc. and Rockwell
                                 International Corporation
 David R. Carpenter............. Retired Chairman and Chief Executive Officer
 The Darcy Company               of Transamerica Occidental Life Insurance
 3400 Riverside Drive            Company and Executive Vice President of the
 Burbank, CA 91505               parent company, Transamerica Corporation;
                                 Chairman of UniHealth; director of PacifiCare
 Phillip D. Matthews............ Chairman of the Board of Wolverine World
 Matthews, Mullaney & Company    Wide, Inc., a NYSE footwear company; Chairman
 70 South Lake Avenue, Suite 630 and part owner of Reliable Company; director
 Pasadena, CA 91101              of Bell Sports and Panda Management Company
 Richard L. Nolan............... MBA Class of 1942 Professor of Business
 Graduate School of Business     Administration at the Graduate School of
 Administration Harvard          Business Administration at Harvard
 University                      University; director of Xcellenet Inc.
 Baker West 181
 Soldiers Field
 Boston, MA 02163
 Delia M. Reyes................. President and Chief Executive Officer of
 Reyes Consulting Group          Reyes Consulting Group, a market research and
 14677 Midway Road, Suite 201    consulting firm
 Dallas, TX 75244
</TABLE>
 
                                      I-1
<PAGE>
 
<TABLE>
<CAPTION>
       NAME AND PRINCIPAL                   PRESENT OFFICE OR OTHER
        BUSINESS ADDRESS               PRINCIPAL OCCUPATION OR EMPLOYMENT
       ------------------              ----------------------------------
 <C>                             <S>
 Charles R. Rinehart............ Chairman of the Board and Chief Executive
 4900 Rivergrade Road            Officer of Ahmanson; Chairman of the Board
 Irwindale, CA 91706             and Chief Executive Officer of Home Savings
                                 of America, FSB
 Frank M. Sanchez............... Owner and operator of eight McDonald's
 5234 Via San Delano #1          franchises; director of the Los Angeles
 Los Angeles, CA 90022           Chamber of Commerce, the Los Angeles Amateur
                                 Athletic Foundation, and California State
                                 University at Los Angeles foundation
 Elizabeth A. Sanders........... Business consultant; director of Flagstar
 P.O. Box 14                     Companies Inc., Wal-Mart Stores, Inc. and
 Sutter Creek, CA 95685          Wolverine World Wide, Inc.
 Arthur W. Schmutz.............. Retired partner of Gibson, Dunn & Crutcher
 Gibson, Dunn & Crutcher LLP     LLP, a law firm; director of Ducommun
 333 South Grand Avenue, Suite   Incorporated
 4550
 Los Angeles, CA 90071
 William D. Schulte............. Retired Vice Chairman of KPMG Peat Marwick
 KPMG Peat Marwick LLP           LLP, a firm of independent certified public
 725 South Figueroa Street,      accountants; director of Santa Anita
 Suite 2900                      Operating Company, Santa Anita Realty
 Los Angeles, CA 90017           Enterprises, Inc. and Vastar Resources, Inc.
 Bruce G. Willison.............. President and Chief Operating Officer of
 4900 Rivergrade Road            Ahmanson and Home Savings of America, FSB
 Irwindale, CA 91706
 Kevin M. Twomey................ Senior Executive Vice President and Chief
 4900 Rivergrade Road            Financial Officer of Ahmanson and Vice
 Irwindale, CA 91706             Chairman and Chief Financial Officer of Home
                                 Savings of America, FSB
 Madeleine A. Kleiner........... Senior Executive Vice President, Chief
 4900 Rivergrade Road            Administrative Officer, General Counsel and
 Irwindale, CA 91706             Secretary of Ahmanson and Senior Executive
                                 Vice President, Chief Administrative Officer
                                 and General Counsel of Home Savings of
                                 America, FSB
 Anne-Drue M. Anderson.......... Executive Vice President and Treasurer of
 4900 Rivergrade Road            Ahmanson and Home Savings of America, FSB
 Irwindale, CA 91706
 E. Nancy Markle................ Executive Vice President of Ahmanson and Home
 4900 Rivergrade Road            Savings of America, FSB
 Irwindale, CA 91706
 George Miranda................. First Vice President and Principal Accounting
 4900 Rivergrade Road            Officer of Ahmanson and Home Savings of
 Irwindale, CA 91706             America, FSB
 Stephen Swartz................. Senior Vice President and Director of
 4900 Rivergrade Road            Investor Relations of Ahmanson
 Irwindale, CA 91706
</TABLE>
 
                                      I-2
<PAGE>
 
<TABLE>
<CAPTION>
         NAME AND PRINCIPAL                PRESENT OFFICE OR OTHER
          BUSINESS ADDRESS            PRINCIPAL OCCUPATION OR EMPLOYMENT
         ------------------           ----------------------------------
 <C>                                <S>
 Eric Warmstein...................  Senior Vice President and Director of
 4900 Rivergrade Road               Corporate Development of Ahmanson
 Irwindale, CA 91706
 H. Rodgin Cohen..................  Partner, Sullivan & Cromwell
 125 Broad Street
 New York, NY 10004
 Credit Suisse First Boston
 Corporation
 11 Madison Avenue
 New York, NY 10010
  Michael E. Martin...............  Managing Director
  Oliver P. Sarkozy...............  Director
  Eric 24 Clark...................  Associate
 Credit Suisse First Boston
 Corporation
 333 Grand Avenue, Suite 2200
 Los Angeles, CA 90071
  Mark S. Maron...................  Managing Director
  Andrew C. Rosenburgh............  Vice President
  Brian J. Cullen.................  Analyst
 Montgomery Securities
 600 Montgomery Street
 San Francisco, CA 94111
  Dick Fredericks.................  Senior Managing Director
  Alan Rothenberg.................  Senior Consultant
  Robert Huret....................  Senior Consultant
  William Pan.....................  Associate
</TABLE>
 
                                      I-3
<PAGE>
 
                                  SCHEDULE II
 
               SHARES OF GWF COMMON STOCK HELD BY AHMANSON, ITS
          DIRECTORS AND EXECUTIVE OFFICERS AND CERTAIN EMPLOYEES AND
        OTHER REPRESENTATIVES OF AHMANSON WHO MAY ALSO SOLICIT PROXIES,
             AND CERTAIN TRANSACTIONS BETWEEN ANY OF THEM AND GWF
 
  As of May 9, 1997, Ahmanson is the beneficial owner of 3,560,500 shares of
GWF Common Stock. In the two years prior to the date of this Proxy Statement,
Ahmanson has made the following purchases of GWF Common Stock:
 
<TABLE>
      <S>                                                       <C>
      February 15, 1997........................................       100 shares
      February 18, 1997........................................       100 shares
      March 7, 1997............................................    60,000 shares
      March 10, 1997...........................................   127,800 shares
      March 11, 1997...........................................    78,700 shares
      March 12, 1997...........................................   233,300 shares
      March 13, 1997........................................... 1,257,800 shares
      March 13, 1997...........................................   587,000 shares
      March 26, 1997...........................................   439,300 shares
      March 27, 1997...........................................   350,000 shares
      April 21, 1997...........................................    92,700 shares
      April 22, 1997...........................................   117,800 shares
      April 23, 1997...........................................    76,000 shares
      April 24, 1997...........................................    59,500 shares
      April 25, 1997...........................................    70,400 shares
      April 28, 1997...........................................    10,000 shares
</TABLE>
 
  Ahmanson sold no shares of GWF Common Stock during such period. No part of
the purchase price or market value of any of the shares described in this
paragraph was represented by funds borrowed or otherwise obtained for the
purpose of acquiring or holding such shares. However, Ahmanson issued an
aggregate of $180 million of its Medium Term Notes in March 1997, the proceeds
of which were used, in part, to replenish working capital deployed in
Ahmanson's purchases of GWF Common Stock. Ahmanson does not beneficially own
any other shares of GWF Common Stock. Other than Mr. Gelber, who owns 332
shares of GWF Common Stock (purchased on July 23, 1996), none of the Ahmanson
Nominees is the beneficial owner of any GWF Common Stock.
 
  Each of CSFB and Montgomery Securities engages in a full range of investment
banking, securities trading, market-making and brokerage services for
institutional and individual clients. In the normal course of their business,
CSFB and Montgomery Securities may trade securities of GWF for their own
account and the accounts of their customers and, accordingly, may at any time
hold a long or short position in such securities. As of May  , 1997, CSFB held
a net [long/short] position of    shares and Montgomery Securities held no
shares of GWF Common Stock. Additionally, in the normal course of their
business, CSFB and Montgomery Securities finance their securities positions by
bank and other borrowings and repurchase and securities borrowing
transactions. To the knowledge of Ahmanson, none of such borrowings were
intended specifically for the purpose of purchasing securities of GWF. Neither
CSFB nor Montgomery Securities admit that they or any of their directors,
officers, employees or affiliates are a "participant," as defined in Schedule
14A promulgated under the Exchange Act by the Commission, in the solicitation
to which this Proxy Statement relates or that such Schedule 14A requires the
disclosure in this Proxy Statement of certain information concerning CSFB and
Montgomery Securities.
 
  In addition to the fees to be received by CSFB and Montgomery Securities in
connection with their engagement as financial advisors to Ahmanson described
in this Proxy Statement, CSFB has rendered various
 
                                     II-1
<PAGE>
 
investment banking and financial advisory services for Ahmanson for which it
has received customary compensation.
 
  Except as disclosed in this Proxy Statement, none of Ahmanson, the directors
or executive officers of Ahmanson or the employees or other representatives of
Ahmanson named in Schedule I owns any securities of GWF or any subsidiary of
GWF, beneficially or of record, has purchased or sold any such securities
within the past two years or is or was within the past year a party to any
contract, arrangement or understanding with any person with respect to such
securities. Except as disclosed in this Proxy Statement, to the best knowledge
of Ahmanson, its directors or executive officers and the employees and other
representatives of Ahmanson named in Schedule I, none of their associates
beneficially owns, directly or indirectly, any securities of GWF.
 
  Except as disclosed in this Proxy Statement, none of Ahmanson, its directors
or executive officers of Ahmanson or the employees or other representatives of
Ahmanson named in Schedule I, or, to their best knowledge, their associates
has any arrangement or understanding with any person (1) with respect to any
future employment by GWF or its affiliates or (2) with respect to future
transactions to which GWF or any of its affiliates will or may be a party, nor
any material interest, direct or indirect, in any transaction that has
occurred since January 1, 1996 or any currently proposed transaction, or
series of similar transactions, in which GWF or any of its affiliates was or
is to be a party and in which the amount involved exceeds $60,000. Certain
directors and executive officers of Ahmanson and/or its associates may also be
directors or officers of other companies and organizations that have engaged
in transactions with Ahmanson or its subsidiaries in the ordinary course of
business since January 1, 1996, but Ahmanson believes that the interest of
such persons in such transactions is not of material significance.
 
                                     II-2
<PAGE>
 
                                 SCHEDULE III
 
                             SHARES OF GWF HELD BY
               DIRECTORS, EXECUTIVE OFFICERS AND NOMINEES OF GWF
 
  The following table sets forth as of March 31, 1997 the number of shares of
GWF Common Stock beneficially owned by each director, nominee, the chief
executive officer and each of the four other most highly compensated executive
officers of GWF. The information contained in the table is derived from
information contained in GWF's Proxy Statement for the Annual Meeting dated
May 12, 1997 and Form 10-K/A dated May 9, 1997.
<TABLE>
<CAPTION>
                                                AMOUNT AND NATURE OF PERCENT OF
                                                BENEFICIAL OWNERSHIP OUTSTANDING
                                                     OF SHARES         COMMON
           NAME OF BENEFICIAL OWNER               OF COMMON STOCK       STOCK
           ------------------------             -------------------- -----------
<S>                                             <C>                  <C>
David Alexander................................        22,675(2)          (1)
H. Frederick Christie..........................        26,250(2)          (1)
Charles D. Miller..............................        30,460(3)          (1)
Stephen E. Frank...............................        10,750(4)          (1)
Firmin A. Gryp.................................       103,644(2)(5)       (1)
Enrique Hernandez, Jr..........................         9,250(4)          (1)
James F. Montgomery............................       680,488(6)          (1)
Alberta E. Siegel..............................        25,000(2)          (1)
Willis B. Wood, Jr.............................        16,750(7)          (1)
John V. Giovenco...............................        41,250(2)          (1)
Bradford M. Freeman............................        20,000             (1)
John F. Maher..................................       611,762(8)          (1)
J. Lance Erikson...............................       119,959(9)          (1)
Carl F. Geuther................................       220,350(10)         (1)
Michael M. Pappas..............................       249,525(11)         (1)
A. William Schenck, III........................        68,288(12)         (1)
</TABLE>
- --------
(1)  Certain executive officers and directors share with their spouses voting
     and investment powers with respect to these shares. The percentage of
     shares beneficially owned by any executive officer or director does not
     exceed one percent of the GWF Common Stock.
(2)  Includes 21,250 shares subject to options granted to this Director under
     the 1988 Stock Option and Incentive Plan (the "1988 Incentive Plan") which
     are exercisable within 60 days of May 9, 1997.
(3)  Includes 18,750 shares subject to options granted to this Director under
     the 1988 Incentive Plan which are exercisable within 60 days of May 9,
     1997.
(4)  Includes 8,750 shares subject to options granted to this Director under
     the 1988 Incentive Plan which are exercisable within 60 days of May 9,
     1997.
(5)  Includes 112 shares held by the Trustee under the Employee Savings
     Incentive Plan.
(6)  Includes 570,600 shares subject to options exercisable within 60 days of
     May 9, 1997 and 945 shares held by the Trustee under the Employee Savings
     Incentive Plan.
(7)  Includes 16,250 shares subject to options granted this Director under the
     1988 Incentive Plan which are exercisable within 60 days of May 9, 1997.
(8)  Includes 396,137 shares subject to options exercisable within 60 days of
     May 9, 1997 and 25 shares held by the Trustee under the Employee Savings
     Incentive Plan.
(9)  Includes 99,010 shares subject to options exercisable within 60 days of
     May 9, 1997 and 112 shares held by the Trustee under the Employee Savings
     Incentive Plan.
(10) Includes 179,845 shares subject to options exercisable within 60 days of
     May 9, 1997.
(11) Includes 172,500 shares subject to options exercisable within 60 days of
     May 9, 1997.
(12) Includes 49,762 shares subject to options exercisable within 60 days of
     May 9, 1997.
 
                                     III-1
<PAGE>
 
          PRELIMINARY COPY--SUBJECT TO COMPLETION, DATED MAY 14, 1997
 
                          [FORM OF PROXY CARD--WHITE]
 
                      GREAT WESTERN FINANCIAL CORPORATION
 
                  PROXY SOLICITED BY H. F. AHMANSON & COMPANY
            FOR GREAT WESTERN FINANCIAL CORPORATION SPECIAL MEETING
 
  The undersigned, a holder of record of shares of common stock, par value
$1.00 per share ("Common Stock"), of Great Western Financial Corporation
("GWF") acknowledges receipt of the Proxy Statement of H. F. Ahmanson &
Company ("Ahmanson") dated May  , 1997, and the undersigned revokes all prior
proxies delivered in connection with the GWF Special Meeting to approve the
GWF/WaMu merger agreement and appoints     and    , or each of them, proxies
for the undersigned to vote all shares of Common Stock of GWF which the
undersigned would be entitled to vote at the Special Meeting of Stockholders
and any adjournments, postponements or reschedulings thereof, and instructs
said proxies to vote as follows:
 
1. To approve and adopt the Agreement and Plan of Merger, dated as of March 5,
   1997, by and among Washington Mutual, Inc., New American Capital, Inc., a
   wholly owned subsidiary of Washington Mutual, Inc., and Great Western
   Financial Corporation and the transactions contemplated thereby.
 
                        [_] AGAINST [_] FOR [_] ABSTAIN
 
  IN THEIR DISCRETION, THE PROXIES ARE AUTHORIZED TO VOTE UPON SUCH OTHER
BUSINESS AS MAY PROPERLY COME BEFORE THE SPECIAL MEETING OR ANY ADJOURNMENTS,
POSTPONEMENTS OR RESCHEDULINGS THEREOF ON BEHALF OF THE UNDERSIGNED.
 
  THIS PROXY WILL BE VOTED IN ACCORDANCE WITH THE SPECIFICATIONS MADE. IF NO
SPECIFICATIONS ARE MADE, THIS PROXY WILL REVOKE ANY PRIOR PROXY DELIVERED IN
CONNECTION WITH THE GWF/WAMU MERGER AGREEMENT REFERRED TO IN (1) ABOVE
PROVIDED YOU HAVE SIGNED AND DATED THIS PROXY CARD.
 
                                          Dated: ________________________, 1997
 
                                          -------------------------------------
                                           Signature of Stockholder (Title, if
                                                           any)
 
                                          -------------------------------------
                                            Signature of Stockholder (if held
                                                         jointly)
 
                                          Please sign exactly as your name or
                                          names appear hereon. If shares are
                                          held jointly, each stockholder
                                          should sign. When signing as
                                          attorney, executor, administrator,
                                          trustee or guardian, please give
                                          full title as such. If a
                                          corporation, please sign in full
                                          corporate name by president or
                                          authorized officers. If a
                                          partnership, please sign in
                                          partnership name by authorized
                                          person.
 
PLEASE MARK, SIGN, DATE AND MAIL THIS PROXY CARD PROMPTLY, USING THE ENCLOSED
POSTAGE-PAID ENVELOPE.


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