http://www.youtube.com/watch?v=z6040YawSp0 another Daggerfall remake I think is worth mentioning. Heberling's tracks, to me, are much more themed - dripping with emotion, which is important for establishing your situation within the game world. By comparison I find much of Soule's music to be pretty nondescript and "neutral" in feeling (or otherwise excessively grandiose during combat), but perhaps this is due to the limitations of MW/OB's music system?
If they went back to themes as they did with Daggerfall, I'd hope to hear more compositions that actually feel as if they have a purpose, much like Eric Heberling's.
Maybe he was good at 8-bit music, but svcked at symphonic music?
I'm thinking this is why. I mean, he's designing slot jingles at the moment so perhaps he just couldn't keep pace with modern soundtracks.