Peter's power is impressive. Because he was bigger than the smaller guys, he might hit harder. who knows. Louis had heavy hands, and dropped people with jabs. And Marciano's whole arm dissappeared into his victim. You couldn't even see his elbow. That's an extremely hard punch.And, those guys were more accurate then Sam. There's no way to say for sure, who hits harder, but I think The little guys could knock out the sam guys that Peter has. I wouldn't say that Peter is the hardest hitter ever. Some of the recent heavies have hit harder.

Foreman might have the heaviest hands. Lennox could crumble anyone with his right. Max Baer killed guys with his punches. Sam is not at the top, but I wouldn't what to get hit by him.