Margarito is the type of fighter that Mosley eats. Margarito does not have defense. It is like watching a demolition derby, meaning whoever is the tougher wins. Mayweather is a different animal. If you don't have endurance (which is commonly decreased in aged fighters), then he could easily outpoint you. It is like bag in the money fight if Mayweather decides to "potshot". No way in hell would Mosley be able to keep following Mayweather for 12 rounds and be competitive. The fight becomes exciting if Mayweather sticks to the "I will knock him out" pronouncement.