Hrm, i've played a lot of video games, they all have this little melody that makes me wanna play em again (i often find myself putting words that have no damn meaning onto them XD)
Any of the Final Fantasies from 5 to 9 + Tactics, Chrono Trigger + its sequel (ALL the boss musics in those games are so good ~.~). Grandia. Tomba 2 (it's a bit childish, but meh). Legend of Dragoon (No one even mentionned this great game yet? o.o). Wild ARMS 2 (western theme rpgs ftw!). Dungeon Siege + the expansion (don't have the second...). Warcraft 3 + TFT + WoW. Morrowind. Medievil 2. Spyro 1,2,3 :p. Crash Bandicoot 2,3 + Wrath of Cortex. Fable was ok but meh. I have to add Golden sun and 2 (hehe). Most of the Zelda series (that means the first gameboy one, oracle of season / time, Ocarina of Time, Majora's mask (gotta love the different ocarina musics per race mask
). Some of the Yu-gi-oh GBA musics..... <.< And i somewhat remember the old sonic musics....those were nice ^^;
Anyways, that said, i'm not very critical about video game music... Genre mostly plays a part in what i'm willing to play though 