I wrote a huge post last night but it didn't save and I cat be ****d going over it again. To summise though: Wlad looked unbeatable against smaller opposition providing they didn't have a speed or strength advantage. Aside from Wlad no one else has shown that sort of physical dominance and the argument then comes down to styles rather than size. Out of the small men, the only ones I dismiss out of hand are Fitz and Corbett because of how poor they look on film. I would struggle to envision Charles, Patterson or Tunney to outbox Fury from range because of the real disparity. I wouldn't rule it out but I would suggest they're underdogs. Johnson and Walcott have no reason to assume they couldn't atleast match someone like Byrd. And it isn't too tricky imagining them outbox Fury up close Frazier, Rocky, Dempsey and Ingo will have to rely on a knockout and given that Fury was dropped heavily against Cunningham that isn't too hard to envision but whether I'd make them all favourite is another matter. Holyfield has so many dimensions that I'm sure he could find one to beat Fury, whether he does that in the first fight or the rematch is a matter of debate. Aside from Fury, the only other proven HW is Povetkin who's isn't a SHW fighter so size doesn't overly come into it. Wilder, Joshua and Ortiz are all very unproven so I have a hard time favouring them over past greats who have competed at a higher level.
The people is calling frazier small when he weighed 206-209 in his prime. Even at 28 against stander carried 217 1/2 pounds And he looked great And solid.past his prime he weighed 224. And all this in 5'11 of height, larry holmes was 6'3 And he weighed the same, he weighed even 188 in his early carrer . so frazier was "bigger" much wider And thicker frame.
Frazier was a beast. Nobody can knock Frazier until AFTER he already beat the greatest heavyweight of all time.