To answer my own question:
- Qui-Gon Jinn. He stood out in TPM.
- Count Dooku (albeit with a different name). He was a stylish villain. But I would eliminate any needless somersaulting.
- Maybe Watto, but since I wouldn't have child Anakin in my PT, I probably wouldn't have any use for him. I think his childish name works well for him.
- Naboo. Beautiful planet. (Again, I need a better name)
- I would keep the EU concept that Dark Side use causes physical deterioration, hence the Emperor's strange look in ROTJ. From movie to movie, Palpatine would look gradually like his ROTJ self, but only about halfway there at the end of the third film.
- Coruscant looked like I think it should have looked, but I would have toned down some of those Kooky Kolors. And if there's a bar scene (as in AOTC), I would turn the lights down. It's too bright in there.
- As I've said many times, the Obi/Anakin duel would take place near an active volcano, not on a volcanic planet. The latter concept is over the top.
Unless I'm forgetting something, this is all I would keep from the PT when making my reboot.