I can't really see it. Norton just wasn't the same backing up and Frazier certainly would take the fight to him. To be fair, Frazier didn't have the concusive power of Foreman, Shavers etc, but he would make it a war in the trenches and there he'd have the edge. I think FOTC Frazier vs Norton of Ali III would be a great fight, though, with Joe probably stopping Norton in the late rds.
Good hypothetical fight ! I see Frazier winning for the reasons that you say. In real life,they could have met in the 1973-76 timeframe. Up to,and including 1975,Joe would always beat Ken. In 1976,though,I'd actually favour Norton. Frazier had virtually nothing left after Manila.
Call me crazy but the two toughest styles for ali were frazier and norton. They could well be the greatest body punchers of that era. Is it feasible that pressure body punchers were his kryptonite?
Jack Dempsey is the only champion fighter with a badass fish named after him. And if you put a Dempsey in a tank with a few Piranha, he'll boss them. :good And, yes, that's on youtube too.