Timstuff, I completely agree with your points. I too would like to see the divide between good and evil better defined. Not because I don't think shades of grey aren't interesting, but as it is now, it's way too muddled. That's because none of the characters or situations are really developed.
I think the best any edit could do is making the Jedi order more sympathetic. The last movie is called Return of the Jedi, and we should feel happy that after the Empire is defeated the Jedi can return. The same goes for the character of Anakin. We should experience a sense of defeat when he turns to the Dark Side, and should feel happy when he is redeemed in ROTJ.
JasonN, I don't agree that Anakin killing Dooku without hesitation means he's impulsive and rash. He had Dooku on his knees and defeated. If he had killed Dooku in the heat of battle, then that may have been impulsive and rash, but now it's just a coldblooded kill. AOTC and ROTS already proved Anakin was impulsive and rash, and the fact that he resisted Palpatine's goading at first says a lot more about his character, I think. I also like how that particular situation comes back, but with a twist, when Mace has Palpatine at saber point.