I actually like Twiztid a little bit more than ICP. My favorite song by them is Raw Deal, though I like Spin The Bottle & Keep It Movin as well. I will eventually be getting some more CD's of theirs, but haven't had the monetary opportunity yet.
Both Twiztid and ICP are similar, as they have done many songs together such as "Spin the Bottle" and "85 Bucks An Hour". Both of these groups are very awesome but potential listeners be warned, these groups use VERY explicit language and VERY pervasive methods of getting their points across. ONLY LISTEN TO THEM IF YOU HAVE AN OPEN MIND!