Oh I don't mind the 'cool' characters either.
I do also love people like Crocodile and Zoro (as well as their designs)
I'm not sold on Law at the moment (he's a little boring) but I don't hate him or anything and he does have an opportunity this arc to catch my interest.
But yeah, Oda's wacky designs are most definitely something that separates his manga from a large amount of the competition.
You mean Law lifting a warship with his finger, got hold of Smoker's heart isn't interesting? I wonder what else he can do to catch your interest.