Definitely some nice soundtracks out there.
Personally one of my favourites was Wild Arms. Partly because I loved the game, but really did think the music was a high point of the game. Nice use of instruments and some good whistling which I enjoyed. Just think that you can't talk about the best in video games without giving the music from that classic a nod.
Especially liked "
Into the Wilderness" and "
Clash and a Promise."