I suppose a PS3 for me. I like the hardware, I use it as a Blu-Ray player, I use it as a PS2, I am addicted to Warhawk and I prefer Sony franchises like Ratchet & Clank, Wipeout, GT, and Socom.
My Wii is covered in dust until Mario arrives as Metroid ain't my cup of tea and VC games are of little interest to me since I own all the old school games that I wanna play (god bless ebay) or until a star wars lightsabre game comes out 😀
I like the 360 but most games on it I can get for my laptop (Bioshock, Mass Effect, Stranglehold) with a better control scheme. It's loud as hell and I'm afraid its gonna break on me during the middle of a game and I will be screwed for a month till the coffin arrives back 😛 plus the interface kinda bugs me... everything seems hidden away in different menus and has the whole Fisher-Price vibe. Although XBL can't be beat at the moment and it is awesome for playing with friends.