I have all 3 6th gen consoles in my household.
xBox sometimes throws a fit, but its been strong.
Usage is rare.
GameCube goes great, don't think I've ever had a problem,
Usage is common/abused. D:
PS2... it won't read DVD's anymore and half the time it won't read the games.
Usage is uncommon
Lets put it this way, I know 9 people, online and off who's PS2 broke on them,, 2 for xBox, and non for GameCube. :/
I own all of lastgen systems as of October 2008. (Finally got a Dreamcast)
I own every currentgen system except PS3.