As Avon marks its 125th year, sales have risen to nearly $11 billion. Investments abroad have paid off, with double-digit sales growth in most regions, though the stock is flagging. But Jung, who has run Avon for 12 years, is the longest-serving woman CEO of a Fortune 500 company, and she sits on the Apple and GE boards.
Boardroom battles and power plays shaped this year's U.S. list, which boasts eight new faces and -- surprise! -- a new No. 1.
