On the other hand, I think Williams decided to re-use some Star Wars themes in Jedi out of pure nostalgia (like the "tie fighter" part during the 2nd death star battle). I loved the way they tacked on the "rebel ceremony" bit at the end of the Jedi finale- it was very bittersweet, and a perfect ending to the trilogy.

i think that it is more Lucas' idea to re-use the tie fighters music in ROTJ (specially in the "sail barge assault", because you can hear an alternative cue on the 97 SE discs)

On the subject of the Prequel music, i like it, it's probably the only thing that i've really enjoyed in the movies but i think there is an "overuse" of choirs in the scores, i feel that sometimes the music is trying to compensate the lack of drama and "epic feeling" in the movies.