I have every single game console out in the past 7 years but use my PS3 most but the Wii is a lot of fun. My Xbox 360 DVD drive failed and cost $100 so I rarely use it -- Which is just as well because everyone single one of my over 10 Xbox 360 friends have moved to the PS3 (mostly due to the dreaded Red Ring of Death).
I use my PS3 as my game system, Music Jukebox (I import all my CDs to the PS3 and then no longer need the CD), and my sole DVD/Blu-Ray player.
I love them all but PS3 first follwed by Wii. The Xbox 360 currently gathers dust.
Own PS1, PS2, PS3, PSP, Xbox, Xbox 360, GameCube, Wii, NDS, Game Boy Advanced, PC.