at his best has the posability to win all, Frazier would be toughest, Rocky easiest, not that it would be easy.
Tyson KO 2-3, Frazier i think would wear him down and stop him later. Marciano i like by decision or maybe late stoppage.
I find Jimmy Young one of the hardest heavyweight guys to rate . He's an enigma. Has some fairly ordinary parts of his career but many think he beat Ali and he did a 'Zaire' on Foreman. He then failed to press home his status before fading. Hard to say he had a consistent peak. I think in the fights you propose here, he would be underdog, but he had the method to frustrate just about anybody. I would be least confident of him beating Tyson. Mike anywhere near peak , wouldn't lose to a cagey type of fighter like Young. Douglas and Holyfield brought the fight to Tyson and I don't think Young had that kind of style to push Tyson backwards.
Somewhat narrow UD loss to Tyson (if he survives the early rounds) 10th round KO loss to Marciano or comfortable UD win (either seems plausible to me) Late rounds KO loss to Frazier edit: Since you stipulate '91 Tyson, I lean heavily toward Young surviving the early rounds, with an outside chance (maybe 15%?) of an actual upset win.
Frazier stops him late ,around 11. Marciano struggle s with him a lot ,could even be a upset loss for the Rock. Tyson 91 drops him at least twice but has to settle for a unanimous DEC win
I think Tyson would probably stop him ,and Frazier has a good shot ,I think he makes it to the end against 51Marciano.
I do not think Young pulls off a win against any ATG swarmer He has the best chance of surviving vs. Marciano.
Like mentioned above, all 3 are wrong for Jimmy. And Joe and Rocky are going to his body a ton so the slipping thing does not come into play much. And Tyson was the rare heavy with the ability to throw hard combos. So the 2nd punch is the one landing and doing the damage, not the first one that Young slips. But that second one is coming in a nanosecond. But Jimmy needs the ring center guys that like room to operate. That's the guys he can nullify. And does he ever nullify. But guys like the Leon Spinks that fought Ali in 78 are not the best matches for Young. I don't think he does very well at all against Spinks in that, but could make lots of other 1978 heavies look horrible.
