Well, the "Revisited" version, being a DVD-9, has higher video quality, so I'd use that as a base and the "Purist" version for the things you want to take from it. And if possible, such as for the duel, I'd use the audio alone from the Purist version, and keep the DVD-9 "Revisited" video for the superior quality.

If I were doing it (and I may still do so after the end of this semester in December), I'd also use Ady's AVCHD to replace the torture droid shot, 'cause I can't fucking stand that lightsaber-y thing in "Revisited."