Best Game of all Time : Doom & Doom 2
Game I played the longest: Ultima Online (4 years straight)
Favorite current game: UT2004 (Been playing the demo, great game)
Looking forward too: Halflife 2 & Doom 3
But I have to say the one game that has kept my interest for ever is Addams Family Pinball best game by far.
1.2.1 Ball Pythons
1.0 Cali King Snake (Weebl)
0.0.1 Black Breasted Leaf Turtle (Hootie)