We have the XBox, XBox360, PS1, PS2, PSP, wii, GameCube, etc. and plan on buying PS3 for my son for Christmas. I personally don't play with any of them. The last console gaming I did was when I had Sega Genesis and a friend and I were addicted to Madden football.
I was huge in PC gaming for several years. It started with Warcraft, than Warcraft II. I played Warcraft III but lost interest before I finished it. I liked the game Rune. I was into a game called Starsiege. I totally geeked out on that one, even joining a game squad. Though it was a blast in the beginning I learned there can be politics to gaming and it kind of left me bitter and I have not been involved in organized gaming since.
My favorite game of all time though is the Diablo series. I have played them all and I will start playing again when Diablo III comes out.
The most fun I ever had gaming though was in high school playing Risk and Axis and Allies with my friends while we drank beer. Nothing like good ole board games and suds!