Everyone seems to want to talk about great heavyweights, always banging on about Ali, Fraizer, Forman, Holyfield (as if), Holmes.... Is Marciano underrated/overrated. I'll tell you now the most underated Heavey of all time is Sonny Liston, he sould be in the top 5 of anyones heavy list, nobody had a clue how old he was he was almost certainly fighting well into his fifties right at the top of the tree. If only he had not got mixed up in the mob (re Ali) then I truely believe that he would be regarded as the truely awsome fighter that he actually was. You want to talk about how hard Fraizer and Forman hit, Liston had more punch than either.