If Hatton wins he will be the best fighter out there considering whats stacked against him, the weight is not an issue the reason hatton struggled aginst collazo is because he was a big guy, floyd wont pose that problem . Hatton is going to have to cope with mayweather's speed (reflexes and hand speed), movement, water tight defense and most importantly the reach advantage. Floyd may not be the hardest hitter out there but he is phenomenally accurate and couple that with the reach advantage he can do a lot of damage to hattons face which is not shy when it come to getting cut.