Deus Ex: HR as far as OST's go.

A lot of games on the poll have great soundtracks, some of my favorites are the metroid prime, mario galaxy, and Zelda series.

I like the generic electronic music from the Wipeout games.

Zelda and some Sonic Soundtracks. Here is my favorites.

Batman Arkham City has one of my favorite sound tracks. The start menu is my favorite part of the soundtrack.

Mother2/EarthBound - SNES
Castlevania 3 - NES
Rockman X/Megaman X - SNES
Euforia - NES
Wonder Boy - Arcade/SMS
Rockman2/Megaman2 - NES
Mother - FamiCom/NES
Pokémon Crystal - GameBoy Color

few of my most favorite/nostalgic video game tracks

Graal Online Classic!

Just kidding. From my experience, the soundtracks from Civilization V would top my list if I were to make one. That being said, I never played the majority of games which were listed or have I heard their songs.

Pokemon colloseum had the best soundtracks, not just good, but original and fitting.

Ace Combat Zero for PS2. Spanish guitars and cool jets go well together.

I like chiptunes :)

Bastion has awesome music

Killzone 3 sound track was really good and peaceful

Listen to this sexiness.

*.* I listen to some metroid prime 2 and Luigi's Mansion music is that bad?