InfoDroid -- did you see nothing of value there? I agree with your comments about the mix, but I was pretty blown away by the general effect. The "Saga" version of the duel is much better reflected with the new music cues and sharper action.
I didn't understand why Obi Wan's line "run, Luke, run!" was replaced with Vader's voice. I think that jumps the gun because if Vader knew Luke were on the Death Star, he wouldn't give a good damn about dueling with Obi Wan.
I watch these two clips back to back and feel a much more "Saga" oriented movie already.
But there is an aesthetic choice you face, InfoDroid: what "look" are you going for?
Trooperman has the intention of "aging" the prequels. We are in danger here of "de-aging" the OT. My opinion is that the SE versions of the OT have many aesthetic changes that match better with the PT, but I think my ideal "Saga" would all have as much OT style as possible. That means music cues, story-telling choices, seamless effects (as much as possible-- avoiding bad CGI whenever possible), and "flash-frames" in the duels and laser-battles. But what do you think?