I am so addicted to the Battle Music from the Palisade. Closely followed by the fight alongside Iselore against the Yuan-Ti in Kuldahar. The final "Smash the Twins" music is good too.

Which battle music do you like?

I would have to agree with you Khazraj, I found that the Palisade Battle music was my favourite.

It really got me into the mood for cleaving Goblins :D

Sherincal's fight had some great music, shame she died so early in the game.

From what I've heard of the sound track I'd have to go with the Palisades as well.