11. Floyd Mayweather Jr.
Height And Sport: 5'8", Boxing
Accolades: IBO, WBC, The Ring and IBF Welterweight Champion, Former WBC Lightweight, Middleweight, and Super Middleweight Champion, 43-0-0 (26 KOs)
Pretty Boy Floyd has been a wild success by pretty much any measure: he has made an ungodly amount of money, has never lost a fight as a professional, and has been one of the most talked-about boxers in the world throughout his career. He is undoubtedly one of the most technically gifted fighters ever to step into the ring, and thanks to this skill has avoided taking much punishment throughout his career. While Mayweather is often been accused of ducking Manny Pacquiao and not being aggressive enough in the ring, the long line of well-known and respected opponents he has defeated would suggest that he's doing just fine.