People, what are your problems?!?! This is the third "console vs. console" thread I'm writing to.... Can't you understand that there are millions of threads like these in Ag...
I will choose the Ps3. Why? Because the graphics, exclusive games like littlebigplanet, killzone etc., free internet and I have a ps1 and ps2 I like them so I bought a ps3.
Wii has okay graphics, but is mostly puzzle and arcade type games because of the playing style. Also the least expensive. Xbox is great, but has a great many bugs and glitches in-game. PS3 is even better (biased cause my favorite game is on it), very expensive if not bought wisely.
One tip. Don't play DMC4 on your own console, it causes a lot of problems. And CubanFrog is right, there are many of these threads. It's ok if this is advice on what to get, but don't try to start a new thread, because then the other thread gets wasted.