Would Marciano have lasted in Manilla ?

Did he KO the same kind of men Ali stopped?

Sure elite punchers at lhw will still have some sting at 200, but I'm pretty sure Ali hit harder than Moore. (And after 85 fights, Moore was still a 162 pounds man, not a "true" lhw, but a mw)
Archie was 29 then, so no teenager.
Sure he was best at lhw, but a man who could stay around 160 for so long at mw surely loses his sting the further he goes up. (Yes, he could KO big men, but against an athletic big man his power starts looking weak and he will be outclassed)
What I want to say is that Ali stopped bigger better men than the men Moore faced.

Sure there are truly elite lhw punchers like Michael Moorer who even at hw have really good power, but Moorer was a bigger man than Archie was.
(Moorer was 26(26)-0 once, and KO'd everyone as a lhw)

 

Ali was very strong and very sharp that night, and obviously tough enough to go the distance in a grueling fight.

I think he'd hit Rocky too often, frankly, and do a ton of damage. He had the chin and the insane toughness to withstand what Rocky threw back, he had the benefit of size and speed, and if one guy's face was going to come apart in a punishing war, it'd be the Rock's.

I think Ali just might be the worst stylistic nightmare for a guy like Rock, in that he could do everything the Charles and Wolcott did that gave him so much trouble, and he had the chin to resist the home run bomb, and the gas tank to not fade severely late.

Just not a good one for the Rock, though he'd have made it a very punishing, grueling affair.