Mrebo said:
Ignoring the PT (which was barely a glimmer in Lucas's eye when he made ROTJ) I don't know how one could think it referred to Vader.
I came to the conclusion when I was very young. A little after the film was released, so way before any PT. I'm not saying that I'm sure that's what it refers to, I just came up with that as a kid and it stuck with me I guess.
"Attack of the Jedi"! Too funny! I have no idea what I'd name the film, but Return of the Jedi has never set well with me. It sounds classic now, I guess, so I'm not rushing to make an edit that changes the title or anything.
Also, to bring this back toward topic, your analysis of the crawls (a term I loathe) is very interesting. In 1999 when I watched TPM opening night, I got a bad feeling about what was to come just from reading the crawl (can't come up with a better term for it). It just seemed... different than the others. Couldn't put my finger on why, but it didn't draw me in the way the OT ones did.
As far as the OT crawls go, the only thing I really don't like is in ESB "...led by Luke Skywalker..." Like you said, I never got the feeling Luke was leading anything. He seems like just another rebel to me and I like it that way. I guess he was a leader of Rouge Squadron or whatever during the Hoth battle, but the opening makes it sound like he's now leading the rebellion or at least their operations on Hoth, which doesn't appear to be true.