Imagine Floyd as a heavyweight with his current quality and he would look ordinary compared to Ali who even possessed sharper, more accurate and busy jabs and knockout punching power to go with his speed, mobility and intelligence..

Imagine Ali as a lightweight or welterweight with his float like a butterfly sting like a bee or float like a feather and hit like a ton capabilities and Floyd would not know what to do and where to hide. Remember that Ali was once described as a heavyweight who moved like a lightweight in the ring. What more if he was a real lightweight ?

Ali would definitely, absolutely destroy Floyd in any version as a heavy or lightweight in their 20s.

Ali is a heavyweight , 200+ pounds . Mayweather in his 20's was a super feather weight , 130 pounds . Dumb question. You can't match up fighters who aren't in the same weight class

Muhammad Ali was a heavyweight and that makes this question a joke because Mayweathr has never fought heaver than Jr. middleweight

Stupid comparison