- The Empire Strikes Back
- Star Wars(1977)/The Force Awakens
- Return of the Jedi
- Revenge of the Sith
- Attack of the Clones/The Clone Wars
- The Phantom Menace
The Empire Strikes Back is obviously the best.
Star Wars and the Force Awakens are so similar in quality and execution that I had to make it a tie. The Force Awakens can be a bland rehash, but it has better cinematography, acting, dialouge, etc. than the original Star Wars.
Return of the Jedi is by default better than all the prequels.
Revenge of the Sith is the most enjoyable of the prequels (not saying much), but it’s an inherently flawed retread of what we already know from the original trilogy explained in pointless detail.
The worst three movies are all very similar in quality to me (unwatchable garbage), but the Phantom Menace is the worst for its historical value: it ruined Star Wars forever and is the most dissapointing movie of all time. Now, the Jedi are really boring, the Force is exclusive instead of inclusive, Darth Vader is portrayed by a terrible child actor, etc. The only solutions to fix the saga after the Phantom Menace came out is to reboot or just force the non-George-Lucas writers to work around all the dumb stuff introduced in the movie.