Play nice.

I have seen a few edits that took the prologue to the crawl approach... and it is just awful. It really takes you out of the film.

I will say though, a fall of vader montage in RotJ might not be awful, so long as you placed it within the constructs of the film. Perhaps a scene where Vader is meditating, thinking about Luke, and flashes of happiness with Padme, the death of his mother, "No, I need him" - cutting off Mace's arm, and his original duel with Obi Wan could be used, interspersed with shots of Luke's face. It would have to be short so as to not detract though.