Yep, Excellent breakdown. I would love a response to this from those who see size as an end-all-be-all.
Marciano fought three opponents over 220lbs, to describe them as Journeymen would be a kindness. Five of his opponents were inside the lightheavyweight limit. Fifteen were under 185lbs. Twenty five were under 190lbs Thirty five under 200lbs.
At this stage I'll go for Rocky ,from what little I have seen of him Wilder he throws wide swings .I think Marciano could get inside and punish his body ,get his hands down and land something serious.
While the big guys that Wilder has been fighting were real world beaters? No, in this case the size argument evaporates, even on its own terms.
The two questions are: Is Marciano quick enough on his feet to close the distance? Can he absorb the punishment he would collect on the way in? Wilder has horrible balance and footwork. If Marciano would keep him moving and not get caught, he could connect. If he gets stunned (Wilder CAN hit), the balance moves quickly to the other camp.
Wilder's 32-0 is probably better than Marciano's 32-0. That said, whether he is very good or merely a one trick pony (I agree with the latter), is that trick good enough to beat Marciano specifically because it melds so perfectly with Marciano's weakness.