Let's be honest, the ONLY reason a 185lb plodder like MArciano was a HW champ was because all sportsmen who were men at all were shot dead from fighting in the most extensive conflict in human history.

Marciano's era represents a major dip in competition level which only really occurs during major epidemics or wars.

Now Joe Frazier was right up there among the most useless boxers to ever make it big time but he was 210lbs, he would have decapitated Marciano imo. His chin failed dismally against what we would today call a SHW but against a blown up LHW like MArciano, how could he fail!

I respect Rocky for his achievements but common sense has to prevail here.

His 49-0 record featured not ONE, Not ONE SINGLE DECENT OPPONENT!