ROTJ is a rare case in that there are just so many things fundamentally wrong with it (the Jabba sequence is disconnected from the rest of the movie, the whole Endor sequence is bland and poorly-paced, the main characters are given arbitrary leadership roles that don’t suit their previous story-arcs), but at the same time there’s just so many things that are awesome about it: the space battle over Endor, the confrontation between Luke, Vader and the Emperor, and one of the most poignant and perfect endings in movie history.