I do think though that a certain Mr. G. Foreman took a lot out of Joe, and helped Ali out for his two other fights Frazier. Then again, he probably took a lot out of Norton too.
Probably, but the complications after the Foreman fight was nothing as serious as the issues after Ali I, nor was the beating as sustained.
Frazier was the tougher fight. Frazier pushed him to the limit in every fight and won one. Norton won one and arguably beat him another one or two times depending on how you score it.
Frazier.Norton had worked out with Ali before he came back from exile and got a little feel for him, so that helped him out in the long run.Frazier damn near tore Ali head off, so he gets the nod.