I think Hatton is regarding as a great bodypuncher mainly from what he did earlier in his career. He finished a lot of guys of with sickening left hooks to the body.

Imo since he has gone up to world class level he hasn't been as effective a body puncher (with the exception of the Castillo fight).

I think this has something to do with the level of opposition and also the stylistic changes hatton has made. To me he seems so bothered about being hit that gets so close to his opponent. This negates his body attack (like it did against Floyd).