Power 100 rank: 1
Rank last year: 5
Sport: NFL/Indianapolis Colts—QB
Most recent notable achievement: 2011 Pro Bowl (11th selection)
Earnings: $30 million
Key sponsors: MasterCard, Reebok, Gatorade, Oreo
Why he's on the list: If there is one man to take over Tiger Woods's role as the leading man in sports, it's Peyton Manning, the most popular quarterback in America's favorite sport. Apart from his amazing on-field performance, Manning is marketable, recognizable, and down-to-earth. It paid off with an estimated $15 million in endorsements last year.