Floyd Mayweather is an all time great level TALENT, but as he hasn't faced anyone recently he was expected to lose to and defeat them, people will not recognise him as such.
Hatton will be stopped in about the 9th round after a savage beating, he will ask his corner to continue but will be pulled regardless as his face will be turned into Manchester mince.
The book Cindarella Man is very interesting, Baer was a nice guy who just happened to be involved in two bad evenings. Obviously the film needed to paint him as a bad guy to make it more successful I guess. He wasn't a particularly sickening one punch guy, more the thudding type that will do more damage the longer it goes.