Who wins? Remember that this isn't old, feather-fisted, defense-minded Floyd. This is a lightning fast prime Floyd with some actual pop in his punches.
Amir had speed when he was young but he never had whiskers. He might have been a bit faster than Floyd but he was not quicker or nearly as skilled of a boxer. Mayweather either knocks him out or wins 10 out of 12 rounds.
If people can't see how far apart these two are in actual skills...then as Roger said they 'don't know **** about boxing.' Weight would never have mattered. Khan could be in his prime now and Mayweather could fight him tomorrow and beat him silly if not stop him. The only way Khan would have a chance? If he was allowed to hit Mayweather over the back of the head with a steel chair WWE style as the bell rang for the first round. (I think I got it out of my system).
Timing beats speed, even a featherfest like Mayweather would put Khan on queer street where all the bambi legged cats love chicken dancing, with the first clean shot that landed. He'd stop him in 6 or less. Money May all day.
Floyd loses round one, not because Khan wins it but because it's kinda a throwaway round for him to measure his opponent. Round 2 through the end of the fight, Floyd wins.
khan was like my washing machine same old cycle floyd as to many settings for the one trick pony kell showed just time him from round one disrupt that rhythm hes ****ed
Floyd KO's Khan after Khan's speed and concentration drop off around the mid rounds. Then it's counter city untill Amir is down the 10 count.