Usyk struggled with Breidis and i can assure you that Breidis would be badly beaten by the likes of Foreman, Lewis etc. Doesn't mean Usyk isn't great. Frazier is a nightmare for boxer types including the number 1 guy in the world today. Unless you hit like Foreman (which most guys don't), you are going to have a nightmare vs him.
Usyk never lost to Briedis, I don't think briedis Foreman is as one sided as people think, he might be better than Norton Why ? Fury is understandable but not joshua, Briedis knocks him out.
Usyk went life and death vs Breidis and never rematched. Breidis landed the heavier shots in the fight while Usyk landed a bit more volume. If they fought 3 times, its not inconceivable at all that Breidis would win one of those 3. Breidis would get stopped in less than 5 vs Foreman. He does not have the height, reach or foot speed to keep Foreman off him. I like Breidis and even if he is better than Norton, Foreman walks right through him. Breidis knocks Joshua out? Maybe. But we don't know if Breidis has the defense and footwork to keep Joshua off him. if Joshua lands properly on him, it could be Breidis getting stopped. I like Breidis but he is unproven vs heavies and its hard to pick him over Joshua when he never stepped up vs hevaies.
Lennox Lewis would absolutely body Frazier it would not be a “fight” same deal with Wlad and Vitali Klitschko… the really big HW’s would just overpower him if they could fight a bit and remember to lean in, clinch or turn the shoulder into his chest. Tyson would crush Frazier very, very quickly again not a “fight” Louis would finish what Quarry started it’d be a 1-3 round execution. Makes me feel bad saying this about JF he was a tough as a terrier but terriers shouldn’t try and hang with Mastiffs and Rottweilers willing or not.