I loved Kick-Ass (and reviewed it a while ago here) not despite, but because of it's over-the-top brutality, its profanity and especially because of its sense of humour. Well, and also because it was extremely well-done, a lunatic action movie with heart and brains, both.
I loved the original enough to drag myself out to a theatre, despite the fact neither the original movie's director and writer Matthew Vaughn, or co-writer Jane Goldman were anywhere to be seen.
Sadly, the sequel is a pale shadow of its predecessor, not horrible, but certainly not very good either.
My full review lives on my site.