Granted, a lot of his Saxon music from King Arthur would work in Skyrim, but I'd much rather have a really GOOD composer do the score. Like Howard Shore, or John Williams. John Williams has somehow managed to make dozens of amazing theme songs, all sounding entirely different. You can still tell when music is done by Williams though, it has a "feel" to it. Whereas Hans Zimmer just.. literally sounds the same.
Soule would be nice too. Hopefully he'll do some more moody music like in Morrowind, mixed with the over the top from Oblivion.