Hit people so hard it was like he was using a crowbar on them. Demolished Frazier, who wasn't exactly a powderpuff, slamming him with body shots that hurt to watch.

Against Ali, he got schooled, his relatively basic techniques no avail against a smarter, quicker and better conditioned opponent. After that fight he seemed to re-invent himself, becoming a smarter quicker boxer.

Please read the reviews from far smarter boxing fans than me- but I have to echo the sentiment of Foreman's power- he hurt Joe Frazier. . .which is no small feat.  Even watching him as a lumbering old man who prostituted image and products part-time you could still wince as you watched his punches that seemed to be able to crush rocks into powder.  Frightening puncher to say the least. . .

His annihilation of Frazier was as impressive as it was frightening. Possessed tank-like strength that saw no decline with age. Had he been a little more fleet-footed he would have ate Ali's lunch. The hardest hitter of all-time.

For my money, the hardest hitting heavyweight of all time. His lack of boxing technique and stamina cost him in his fight with Ali. In his second career he was a different, well schooled fighter who seemed to have learned his lesson. Ali might or might not have won against this Foreman. Refer to my comments on Ernie Shavers for more on Foreman.

At heavyweight,I think it's a toss-up between him and Shavers.

Foreman was among the hardest hitters ever seen.

A bomber in a weight class of bombers. Every punch was a hay maker especially those body shots. He had that weird almost side-arm way of thowing body shots that really conveyed their power.

So what if Foreman had an age, weight and height advantage over Heavyweight Champion Joe Frazier? Not he nor any challenger would ever be able to survive 'Smokin' Joe's onslaught. Or so most of us thought. I was not around for the Tunney-Dempsey or Schmelling-Louis shockers but do recall vividly Cassius Clay's title fight upset of Liston as well as Ali's brilliant own over Foreman. Among us, no other bout impacted more than the skillfully engineered pulverization that Foreman, in his prime, engineered over Frazier.

George Foreman was the hardest hitter I've ever seen - I didn't even see him in his prime. Foreman hit so hard, it was like he was chopping wood. It looked to me like it didn't matter you if blocked his punch or not - you were still sustaining damage.