If Castillo beat Floyd in the first fight then doesn't that make the rematch that much of a better win ?, can either Holmes or Ruddock claim to have a win close too someone like Floyd Mayweather ?, Michael Spinks comes closest if you count the 2nd fight as a win for Holmes but even then Spinks wasn't at his best.
Tyson may have crushed his opponents, where as Floyd didn't have the power or style too 'crush' them he beat them just as impressively as Tyson did in his own way in that he's pretty much controlled every fight and rarely loses rounds.
He didn't 'nearly' beat Holyfield at all, he made Holyfield look sloppy at times and made some rounds competitive but it was Holyfield all the way, Mercer win is impressive but that's all Holmes has after fighting Tyson where as Castillo and Corrales both stayed competitive at a fairly high level.
Tyson may have crushed his opponents, where as Floyd didn't have the power or style too 'crush' them he beat them just as impressively as Tyson did in his own way in that he's pretty much controlled every fight and rarely loses rounds.

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