Other than the Young fight which might have been a balance issue look at the fighters he backed up. Ali, Frazier, Lyle these were men who where Physically very strong. Foreman was a beast.
hmm says... hard to say cause this is just objective and there's no way we can test who is actually stronger. I'ld probably go with Valuev just for his sheer size, but from display, I go Foreman. It's all in the air.
I wouldnt say that ali pushed foreman around. more like played rope-a-dope until foreman grew tired. I would have to say Valuev is the strongest. He carries 300 plus pounds around. just doesn't fight like he's the strongest.
I wouldn't neccessarily say that this factor would make him the strongest. I was carrying 300 lbs. around at one time, and I was just a fat ****er, not a beast that could throw another big guy around with ease.
Ken Norton was a bit of the monster too. Broke Ali's jaw in there first fight, but then got destroyed by Foreman. atsch