Think of some of the all-time great pound for pound fighters in the sports history; Sugar Ray Leonard, Sugar Ray Robinson, Joe Louis, Roy Jones Jr., Julio Cesar Chavez. Great great fighters. But Floyd trumps them all. There has never been a boxer with Floyd Mayweather's skills. This includes heavyweights and even the great Muhammad Ali. Close skill comparisons are Sugar Ray Leonard, Sugar Ray Robinson, Roy Jones Jr., and maybe a few more.  Separating Floyd from this list is his pure dominance.  He is a tactician.  Never has there been a boxer who has the best defense as well as the best offense. Counter-punching? Forget about it. He makes the seemingly difficult fights look effortless, and with his unbelievable work ethic to go along with his natural gifts, this enables him to do so.  Mayweather has an unmatched combination of speed, timing, brains, defensive skills, and the ability to fight close range as well as long range. What can't he do? What doesn't he do? 40 wins, 0 losses, 0 draws. 25 knockouts. Diego Corrales, Jose Luis Castillo twice, Chavez, De La Hoya, Gatti, Zab Juda, Marquez, and Hatton; just a few of the notables. He has dominated the competition in every fight and against the sports best.