Oprah is No. 1, naturally; Diane Sawyer is No. 2, Barbara Walters is No. 3, and Ellen Degeneres is No. 4. Tyra is singled out for creating one of the CW's most-watched programs, America's Next Top Model. Though her eponymous talk show pulls in only half the audience as Oprah's, she attracts younger, more coveted viewers. Most important, thanks to Tyra, the nation's young women have never felt better about their bodies, minds, or souls. [Forbes]