This fight would look a lot like Collazo/Mosley with Mayweather playing Sugar's part. Both guys would be extremely hard to hit but at the end of the night you'd have one clearly looking busier out of the two. Whitaker would get on a bike and run late, but Mayweather has never felt compelled to KO anybody. Whitaker would pretty much just be stretching his legs and then get brought back to earth by his corner telling him he needed a KO that would never come. Mayweather by easy UD as he also has more power out of the two and more will to use it.