Frazier wins but he'd still have some troubles with big George based upon styles. Swarming fighters would always have trouble with Foreman because pressuring a mountain sized guy that can also hit back isn't easy.
Frazier beats the shit outta the 91 George! The 91 George still had power, but he had none of the VELOCITY on his shots that he had in 74. And thats what really destroyed Frazier. It wasnt just the raw power, but because the velocity of Foreman's punches. Not saying the 74 Foreman had the handspeed of Tyson or anything, but the 74 George was a HELLUVA lot quicker than the 91 George.
True, but Frazier didn't just have a problem with punching power but getting inside and staying there. Even old George was extremely strong and was able to push off opponents. Frazier would no doubt win but he wouldn't steamroll Foreman either.
Joe would take a tanking early, but come on late by fighting a bit more on the back foot like he did in the rematch.