Overall in one game? I'd say Chrono Trigger or Cross. Both have soundtracks throughout the whole game that are amazing.

I think for me this distinction easily goes to Kid Icarus: Uprising. Seriously, not an average track in the game, much less a bad one.

I may not still feel that way in a year, so my backup is The Wind Waker.

Ohh my god nobody mentioned God of War 3

I love Final Fantasy XIII, Final Fantasy X, Crisis Core: Final Fantasy VII, Sonic Adventure 1 + 2, Resident Evil 3, Tales of Vesperia, Final Fantasy VIII.

So many great soundtracks out there, always from my favourite games which is odd.

Of all the games i've enjoyed since my nes days, nothing has been as epic overall as XENO GEARS

Serious?  I mean, it's only my opinion - but I think it's aged incredibly well.  I genuinely believe it's still the best snowboarding game on the market, old or new.

Never played it but that reminded me so much of Final Fantasy Tactics. :p

Anyway, tough one. Couldn't name just one. A top 5 (including my favourite songs from the soundtrack) would look something like:

Battle Arena Toshinden 3 [no, really] ( http://www.youtube.com/watch?v=mDe-KtCD10w )

Final Fantasy VIII ( http://www.youtube.com/watch?v=RVkcmx2l3WA )

Spyro: Year of the Dragon ( http://www.youtube.com/watch?v=xI2px-YGUSA )

Timesplitters 2 ( http://www.youtube.com/watch?v=3ktaQPVBsUk ) (I know it's from the first game, but it's included in the second, which overall was better)

LittleBigPlanet 2 ( http://www.youtube.com/watch?v=xRV4-IzfGY8 )

I also have to give a shout out to Super Mario Galaxy 2. As a complete soundtrack, it surely is the best I've ever heard.

Still, my favorite video game track has to go to Sky Sanctuary Zone from Sonic & Knuckles. Amazing song.

All Zelda games, the original GTA and crazy Taxi. Gotta love the Offspring.