I'm convinced that in that short span of 4 years or so, he could beat any heavyweight in history...speed strength accuracy and ferocity
Ali had massive brain damage by the time Tyson became a pro, so what he said means nothing. Prime Ali wins every round against prime Tyson and also KO's him late in the fight.
prime Tyson is a tad bit overrated, but yes I think he could beat just about any HW in history. He was that talented and skilled.
So you think Tyson could beat any heavyweight in history based on the fact that he beat Trevor Berbick, James Smith, Tony Tucker and Frank Bruno?
To be fair most ATG's would look great against the opposition Tyson fought in that period. To sugest he'd beat all prime ATG's based on LHW Spinks and old Holmes is crazy talk even if he looked brilliant doing it.