Either way, it really makes no difference.
Lucas did a very poor job of encoding and sampling the movies. I watched the first one, and all it really was, is up to date, electronically enchanced soundtrack/sounds with oversampled bass in explosions, death star scenes, etc.. etc.. The huge bass drops when explosions hit are way out of place. The Phantom Meance was the most oversampled with lower freqs in a movie I've ever seen. This is almost just as bad.
Yes, I might be critical, but I bough the trilogy for what I thought would be a re-worked soundtrack with the X-wings and saber/blaster scenes, nothing changed all that much from the VHS version. My 4 rear surrounds were barely used for much more then soundtrack work. A few scenes include shots be fired, or ships going behind you, but not as much as I expected.
I personally like DTS much better, seperation between channels is much more distinct.
Maybe I just expected too much from a re-worked movie that's almost 30 years old.