If the journalists reporting Jeffries' feats are telling the truth then he definitely deserves a mention.
Forced to pick, I’m going with the 320 pound pharmacy version of Miller over everyone. Adamek was like a little kid in the ring with him.
Mike Tyson and Joe Frazier were freaks of nature. So were jack Dempsey and Jess WIllard. Ken Norton was another specimen and Mike Hercules Weaver! More recently, Wilder and Fury.
Blessed to be the first to mention Primo Carnera first. What a specimen, and all clean. This heavy and this well defined shape in his times?
In the ring- George Foreman, I'd say. Out of the ring or in general- I'd say maybe George Mostardini? His day job was using a jackhammer and he was inhumanly strong. Just not noteworthy as anything other than a journeyman heavyweight who got one highlight exhibition with then champ Leon Spinks. Louis Monaco was a good shout though too. So was Jack O'Halloran.