Is he really the best?

[magnum]

Ali imo was the best Heavyweight Boxer.

When i say boxer i mean a conventional type of fighter who makes boxing look like a art, not a slugger, that position goes to Marciano.

But you cant really compare weightclasses, he definetly was the worlds greatest HEAVYWEIGHT boxer, but you cant really compare him to any of the lowerweights just due to the physical power and speeds some classes had over others

well joe louis has an definite arguement that he is the best heavyweight also.