I'm going for Liston because nobody else will and his name deserves to be up there
The word tragic sums it up really well.He is certainly one of the best heavyweights of them all. Mean, moody, H bomb puncher and had a Tyson like ability to psychologically beat his opponent before the opening bell.
It's just a shame that his private life was a train wreck and his ties to the mob never let him get to his full potential. We might have seen something else if he did not have so much baggage. It is sad to think he died such tragic circumstances.
MIne has to be Joe calzaghe, 46 undefeated fights, 32 were by knockout, trained by his dad, he was special.