It's not like the others are bad but The Empire Strikes Back is clearly the best Star Wars film. A New Hope is a close second and Return of the Jedi is good but falls short because of its poor pacing and lack of character development. Character development is RIPE
in The Empire Strikes Back, along with top quality direction and cinematopgraphy. The Empire Strikes Back features Darth Vader owning everyone around him including his own son, Vader is so cool it makes me sick. People don't realise how cool Darth Vader is until they watch this movie and see his sillohette when Luke first sees him in the carbon freeze chamber and appreciate how freaking cool that is. "You are not a Jedi yet" along with every line Vader has is mint (northern term).
I'll add A New Hope and Return of the Jedi another day.