Clerks II was awesome. It can't really be compared to Clerks, it was an entirely different style, but it was still really good. The characters remained strong, and the jokes remained funny. They also made references back to almost all the other movies ('15 bucks, little man', etc).
It was also disgusting and perverted, much MUCH more so than the original Clerks. But in a mostly funny way. Mmmm, beastiality....