Does anyone else fancy Topher Gracing the sequel trilogy as much as I do? That is, a lot?
I think we'd have a much better time trying to take the best parts of three movies and putting them in one (possibly quite long) movie, rather than trying to fix all three. We could focus completely on anakin's journey to being darth vader on top of a backdrop that is the seperatist war known as the clone wars.
When it comes to changing Sifo Diyas to qui gon I don't think that would add anything to the movies. The clones are only there as the tools for sidious to create the empire and take down the jedi, how would adding qui gon into that improve it?
EDIT: I've since had the idea that two movies would work far better, here you can download my pseudo script:
http://originaltrilogy.com/forum/topic.cfm/A-Prequel-Duology/topic/15693/