I like them all. Admittedly the rules always seemed like an afterthought and that has caused a lot of them to age poorly. The themes and artwork and toys were usually a lot of fun though and I can find something to enjoy in all of them that I've played.
Baywatch is the best one, but kind of a maintenance nightmare.
X-Files is pretty great too, it seems to be catching a second wind here in the last several months.
Starship Troopers is on I'd like to own someday because the shots are good and it's one of the best movies ever made, but I don't know the table too well otherwise.