Hmm what weight is a super heavy, whats the cut off point? because im pretty sure id pick them all to knock him out.
I would pick all of the above to knock him out. Lewis and Wlad perhaps in one round if they were aggressive.
He'd beat a lot of those guys who go 6'4 and 220-245 In my opinion. He was giving Muhammad Ali a pretty decent fight in 1972, until Ali really started to crank it up. But most heavyweights that size aren't capable of cranking it up like Ali could.
