Jurassic Park 2 was ruined by Ian's annoying girlfriend and his annoying daughter. Aside from them, it was still cool. I kind of forget JP3, I'd have to watch it again. JP4 supposedly is going to be good though. Steven Spielberg is producing it and he states that he thinks it's the best story since the first one.
http://www.killermovies.com/j/jurass...cles/1858.html