Bettina had a short run at heavy, one sparring session made Louis sweat off of fighting southpaws. Mildenberger gave Ali a solid fight himself. Who would win?
Not the fans who have to sit thru this awkward af match. But I'd favor Bettina, who seems to have the edge in power & durability.
Probably Karl. Bettina said he was getting back in shape 1945 after WW 2 and stepped in to spar some unknown guy and got his butt kicked bad. Turned out it was some guy named Archie Moore. The guy people say supernaturally had his physical peak when he was in his 40s in the 1950s. But this would have way before that huuum.