There are only 3 star wars films.
Star Wars 1977
The Empire Strikes Back 1980
Return of the Jedi 1983.
I like them about equally since they tell one story, though i do know empire is the best made of all three.
The most fun, probably a tie between star wars and jedi.
I like to think there is only 1 star wars trilogy, and 1 indiana jones trilogy. everything that came after is self parody and a lame joke pulled on the fans.