@Monkey:
After all the art of manga should be that less is more.
Should it always be like that, though? I feel some of his overcrowded panels do look great. Or how he sometimes puts the important dialogue on the forefront and some wordless gag/interaction on the background.
I think a bigger problem than that is that panels are kinda getting smaller so he can squish in as many as possible per page. That's more troublesome than overcrowded panels, imho.