Many Nintendo sountracks give a good feel for the game im playing, and they are varied. Koji Kondo is a freaking genius.
The only soundtrack i can remember from Uncharted 1 & 2, is the main theme though. I cant remember any other Sony soundtracks unless they are older Playstation titles like Ape Escape
I think Halo games have pretty good Ost but the most memorable are usually the main themes.