Ali and Norton fought each other 3 times, i.e. twice in 1973 over 12 rounds, and then in 1976 in a 15 round world title fight where Ali was defending champion. Norton got the decision in the first fight (where Norton broke Ali's jaw) and Ali got the decision in the second and third fights. Many people, myself included, thought Norton won all 3 fights, and I'd say a clear majority of people had Norton winning the first and third fights. In October 1976, Ali said about the third fight "Kenny's style is too difficult for me. I can't beat him, and I sure don't want to fight him again. I honestly thought he beat me in Yankee Stadium, but the judges gave it to me, and I'm grateful to them." Norton was bitter, stating after the fight: "I won at least nine or ten rounds. I was robbed."
No, that's not right. Ali refused to be drafted into the armed forces in Vietnam in April 1967. At the time, Ali was undefeated at 29-0 and had been world champion for over 3 years. Ali was stripped of his title and his boxing licence, and his passport, and threatened with all sorts of other punishments. Frazier was one of the people at that time who, while never directly opposing the Vietnam War publicly, spoke up for Ali and gave him financial support. Ali eventually came back to the ring in October 1970, and won 2 fights into his comeback before facing Frazier in 1971 in the Fight of the Century. Both men were undefeated, Frazier the reigning champion at 26-0 and Ali the former champion who had been stripped was now at 31-0. Ali used mind games in the run up to the fight that basically called Frazier an "Uncle Tom" and a "white man's champion", which made Frazier mad. Even though Frazier grew up poorer than Ali and had actually helped Ali during his exile from boxing, Frazier was seen as the "establishment" candidate during their 1971 fight, getting support from pro-Vietnam War people. That Frazier later took Ali's bait and started calling him "Cassius" just played into Ali's hands even more about "Uncle Tom" and "establishment". The rivalry between Ali and Frazier was very, very bitter as a result.
Hard to do, but I think I have Foreman at the top, at least for the aura of dominance. Ali for resiliency and comebacks.
Probably Lewis on points, because he's more disciplined on the whole. That chin however is always suspect.