PS3 60GB was the first, and is now the back up PS3 for playing on the bigger screen (mostly movies and the rare PS2 game).
Wii was purchased second but currently sees no use and won't until Punch Out hits shelves.
Xbox 360 was bought during the Fall of 07 and has not been used to play any new games since Gears 2
PS3 MGS4 LE w/ 320GB HDD sees the most use as the default console and video player. It's quieter and generates less heat than the 60GB.
The non-gaming PC actually sees the second most amount of use for gaming since it's usually on anyway for general purpose use.
The gaming PC sees a bit more use than the Xbox and Wii, but mostly just sits idle looking really big and impressive.
(have a DS sitting in a drawer used to play Advance Wars about a year ago. Forget when I bought it. Early 2007? Late 2006?)
