Honestly, I'd prefer some alternative rock, not like 'hipster' alternative, but something more along the lines of SR-71, or 'There For Tomorrow' ( 'A little faster')
My main problem with the Combichrist soundtrack was that it didn't feel like it was designed for something to do stylish combos to, more like it was made for one of the earlier builds of the game from 2011 that focused more on the idea of the reactiveness and tightness of the combat itself as opposed to the fluidity of the combat. Considering it was in the TGS 2010 trailer before the first look at those builds, it is very likely that was the case.