I totally despised the first movie. It was almost nothing like the book except for Nedry's subplot line and the people getting trapped in the middle of the island with the dinosaurs running around. Maybe I would have liked it better if I hadn't read the book first, I dunno.
I actually like JP2 better than the first just because they put the T-Rex in the middle of San Diego (?) and let it run around. The rest of the movie was just so-so. I supposed I liked it better because it was nothing at all like the book so there was nothing to compare it with except for the excreble first movie.
JP3 sounded so ludicrous I didn't want to waste my money; not even at the $1 theater.