Both are great

Indeed both movies are phenomenal and flawless but I’m going stick with ESB. It’s my favorite Star Wars movie of all time. From Han and Leia’s blossoming romance, from Luke and Vader’s duel and the game changing revelation that followed, Yoda and Lando’s introductions, the Battle of Hoth. Everything was just perfect.

I love them both. I think that ESB is definitely the better movie, but Return of the Jedi is my favorite of the two.

The Empire Strikes Back is my personal favorite

But I like A New Hope and Return of the Jedi as well

ROTJ. TESB is great overall and has some excellent scenes, but also had some really boring parts and is slightly overrated. Lando also just never seemed like a particularly interesting character, and the movie's ending could've been a bit better.

I used to think ESB, but now I think RotJ.