Final Fantasy IV (FF2 here in the us for the SNES) changed my life. that sounds corny corny but it did. I get teary eyed to this day if i hear FFj4 music!
Xenogears. so. fucking. awesome. Plotplotplo -happy sssigh-
Lunar SSSC, Baldur's gate series, FFVII of course and FFVI. Vagrant Story, Suikoden 3, the Ogre tactics series, FFT, Xenosaga........ ohmygod there are too many masterpieces. other than rpgs...
Street Fighter Alpha 3, X-Men VS SF on the Sega Saturn, Tekken 2, Metal Gear Solid, Tony Hawk series, i also thoroughly enjoyed Turok 2.... but that's been.. what. four years?
this is like 10% of the games i could spout to be on my _favorites_ list
FFIV!