I should really think about this more, but off of the top of my head my favorite games of all time would probably be:
Super Dodgeball
Any of the SD Hiryu No Ken Games
Street Fighter Alpha 3
Gradius 2
Phantasy Star Online
Starwars KOTOR
Phantasy Star IV
Resident Evil: Code Veronica
Legend of the Mystical Ninja (Any of them)
The Longest Journey
Breath of Fire 2
Valkyrie Profile
Lufia I, II
Final Fantasy VI, VII
Secret of Mana
Suikoden I, II
Persona 3
Earthbound
Star Ocean (any)
Xenogears
Xenosaga 3
Final Fantasy Tactics
Soul Calibur (any)
Super Mario Kart
Super Mario Bros 3
Ghost Chaser Densei
Everquest
Guild Wars
Baldurs Gate II: Shadows of Amn
