I'm an I.C.P. fan, too.
I enjoy their offbeat style and the fact that they can rap without saying the words "n***a", "gangsta", or "pimp". They're rappers who aren't afraid to show their violent, twisted side, and who aren't afraid to take people on without all their guns and their friends. Not all of their songs are good (no artist is perfect), and I don't agree with everything they say, but overall they're pretty good. No other band, not even Rage Against The Machine, has managed to bring rock and rap together so seamlessly that it changes genres sometimes in the middle of a song. Whether you love them or hate them, you have to admit that they're unique. Nobody else is like them.
For those that hate I.C.P. and think they have nothing intelligent to say, I advise listening to "Nothing's Left". That song is different from most of their stuff, and if you think about it it's true. There's not even any profanity except in the beginning.