Mine was NBA 2K4, until it stopped loading correctly. So I picked up NBA Live 04 and it will do until I get NBA 2K6 :D
I like playing with the Raptors (duh?), Cavs and Bobcats
Favorite player is Chris Bosh.
NBA 2k5. Kwame Brown plays like everything he should been in that game. He's my nba 2k5 cheese :D
I only played a real old one for PS1.
I need to get my PS2 back from my brother
I actually like the 2004s of the NBA games (NBA Live 2004, NBA 2k4). I haven't played Live 05, but 2k5 is really hard to get used to.
I am actually playing NBA Live 98 on the PSX now.

OK, playing 2k2 on the Gamecube

Got NBA Live 2005 last week and it looks great on the Gamecube

Anyone got NBA games on the XBox 360 yet?
Got NBA Live 2005 last week and it looks great on the Gamecube

Update, finally learning how to play this one and I can do alley oops and even bounce it off the backboard. Too cool! 
Anyone got NBA games on the XBox 360 yet?
I've got the 360, dont' have any NBA games but I have played Live 06. Dissapointing as far as the features go, no franchise mode. However it is extremely fun to play and the graphics are amazing. Kobe is amazing in that game.