bps21:
This is the way I looked at it:
The Phantom Menace - I actually enjoyed the movie. The only thing wrong with it IMO was too much Jar Jar. Thankfully, Lucas listened to the fans for a change and made him an extra for the next two installments.
Attack of The Clones - The sequel was fucking awful. The only things good about it in my mind were the Clone Troopers kicking ass and Anakin murdering Sand People (I hated them growing up and still do).
Revenge of The Sith - The best of the trilogy for obvious reasons.