Muhammad Ali
Manny Pacquiao
Stat by stat
Bars are scaled to the leader in this list.
The verdict
Manny Pacquiao leads 2 of 2 categories. Our all-time ranking places Muhammad Ali at #2 and Manny Pacquiao at #8.
The case for Muhammad Ali
The most consequential figure in boxing history and, by his own and much of the world's reckoning, the greatest heavyweight. Ali finished 56-5 with 37 knockouts, but his record undersells him: a draft-refusal exile stole three-and-a-half prime years, and he returned to win the title twice more, becoming the first three-time lineal heavyweight champion. He beat a murderer's row of champions, Sonny Liston, Joe Frazier, George Foreman and Ken Norton, in fights that defined the sport: the 1964 Liston upset, the Fight of the Century, the Rumble in the Jungle, and the Thrilla in Manila. As a young heavyweight he moved and jabbed like a middleweight, revolutionizing what a big man could do; as an older one he showed extraordinary chin and ring guile with the rope-a-dope. His athletic gifts, showmanship and moral courage made him the most recognized athlete on earth.
The case for Manny Pacquiao
The only fighter in history to win world titles in eight weight divisions, Pacquiao climbed from a 106-pound teenager in Manila to a welterweight champion who beat the sport's biggest names. His record of 62-8-2 with 39 knockouts is decorated with lineal titles in four divisions and destructive wins over Oscar De La Hoya, Ricky Hatton, whom he knocked cold in two rounds, Miguel Cotto, Marco Antonio Barrera and Erik Morales in an epic trilogy, and Juan Manuel Marquez in a rivalry of four razor-thin fights. A whirlwind southpaw with blinding speed, an unusual angle of attack and relentless volume, he was named Fighter of the Decade for the 2000s. He carried a nation, becoming a Philippine senator while still fighting at the elite level. Only a controversial loss to Marquez and the long-delayed Mayweather defeat mark an otherwise singular ascent through the weight classes.