They posed the same question about Rocky Marciano.
Computer analysis determined that like the first Frazier-Ali fight, Marciano would win but would lose in a re-match. Tyson vs Ali, Tyson stood no chance. Ali would have handled him like a smaller version of Sonny Liston.
I have always chuckled at any notion that Marciano came close to being a great heavyweight, let alone in the same class as Ali. Consider:
1. Marciano fought at 187 lbs Ali was 30 lbs heavier and MUCH faster
2. The only heavyweight of note that was in his prime when Marciano beat him was Roland La Starza. Anyone heard of him?
3. When he beat Joe Louis, Ezzard Charles, Jersey Joe Walcott and Archie Moore, they were all well past their prime (check their ages at the time).
4. His handlers carefully managed his career to ensure that he was not exposed to any real threat on the way to his 49-0 lauded record.
5. I hear people talk about Maricano's record of 49-0 as if it means something. I'm struggling to figure why this is even considered a record at all. Jimmy Wilde was 132-3 he was was on a 100 win winstreak before he lost. Sugar Ray Robinson was 131-3 when he retired.. the first time. Willey Pep 229-11. As far as Title defenses.. he only had 6, less than Mike Tyson and Lennox Lewis. So why does this number even matter?