I think Marciano would eventually find Ali over 15 rounds

[Beanflicker]

I don't think Marciano would have knocked Ali out. I just don't see him hitting him with that kind of consistency.

Marciano was teeing off on fat Don Cockell with flush shots to the chin and had trouble putting him away.

Ali had a great chin and was a great survival artist when he was hurt.

[roberto duran legend]

Ali was never knocked out by giants,cant see a small Marciano doing it.