H2H- Who takes it? for an unlimited amount of rounds the Ol fashion way- with Willards rule set and Carneras gloves.
Either Carnera would win a wide points decision, or Willard would win by stoppage somewhere. Either way, you can't have them both losing!
I'd pick Willard in a finish fight. More natural fighter, not as well taught but better instrincts, and a much better chin, and probably better power.
Big Jess for me, more durable. Not a good one to watch, at lot of mauling and falling in to each other. If it s a 15 over fight, then Willard could get a stoppage.
I would pick Carnera, provided we have a lenient referee. I think that provided Carnera can come back from a couple of knockdowns, Willard probably doesn't have the killer instinct to finish him, and Carnera takes the decision. Of course if it happens today, Willard very likely gets a TKO, and Willar probably wisn a finish fight. So I am going with Carnera under 30s rules, and probably more eras then not if that makes sense.
Willard - He didn't have the physical disadvantages that the vast majority of Carnera's competition had and was probably a more competent boxer; stronger and tougher than Carnera.