There's also the music edits to consider. For the transitions from Dagobah to the Imperial fleet after the cave scene and the X-wing rising from the swamp, the 70mm and SE versions use the music as composed (versions of the Imperial March), while the 35mm spliced in bits of the concert version instead. Also on Bespin in the carbon chamber, when the door shuts behind Luke, there is a loud gong crash in the score, which is followed by some quiet creepy music. For whatever reason the film-makers decided to remove the music from this scene; in the 70mm it cuts off right before the door closes, whereas the 35mm leaves the beginning of the gong audible. And when Boba Fett says "put Captain Solo in the cargo hold", the music runs as composed in the 70mm, going all the way to when the scene changes back to the carbon chamber, at which point it cuts off again. The 35mm version sounds very choppy indeed, and cuts off abruptly when Chewie begins firing at the departing Slave I.

I grew up with the 35mm version on vhs, so I prefer that mix for the most part--all the added lines in the 70mm sound like SE additions to me, even though I know now that they're authentic. But the music edits in the 35mm I find distasteful now I'm familiar with the music on its own. I am a music fan and dislike hearing this kind of hackjob applied to the score, particularly seeing as it wasn't necessary to keep in synch with the visuals. My personal preference would be for a combined version that for the most part uses the 35mm but goes to the 70mm to use the correct music cues. (OCPmovie tried to do this with the classic edition, and it worked mostly, but there are a few places where it obviously jumps from one to the other, which is unfortunate. Also he kept a few SE lines I would have preferred to not be there.) Of course, a straight recreation of the 70mm would be great as well--a combination of the '93 and '97 mixes would be the best way to accomplish this.