We all know heavyweights are the hardest punchers, but what about the smaller guys? Who are/were some of the hardest punchers, pound for pound, or guys whose power stayed with them as they moved up in weight?
Bob Fitzsimmons a natural middleweight who had one punch power that took out heavyweights. It doesn't get any more legit than that.
Julian Jackson Tommy hearns Alexis Arguello Sandy saddler, not sure if he moves up. Tito trinidad Manny Pac Mccleland Benn Mugabi Norris. Few comes to my mind but not sure if all moved up several weight.