I like all of the girl's remodels; Leifang, Tina, and Helena especially, I guess because they didn't have to change much to have them still look the same, but more refined on a graphical standpoint/just more realistic.
Hayate on the other hand... I hate his new hair, I hate his new face, I hate his new outfit, I hate his new wind dash... what? Oh right were talking about looks. I can see where they're going with his facial expression. It appears as if he's angry all the time, which makes sense, because he does act impulsively a lot of the time off of his emotions. Same can be said about the other two girls I suppose. It's in the air about Ryu though as far as that goes. Like I said, I don't like it.