Previouly I have owned all the 3 consoles... now i own only pc n ps3...
If i can choose one... i'll definitely choose PC...
advantages...
can play many2 games (n if prefer can use emulator as well)
for console like experience.. i'll just use the xbox360 controller
disadvantages... can be very expensive cause u need a very good graphic card... (now good graphic card getting cheaper, but still need to spend around rm750 to rm950)

PS3 advantages... hav very good game which is exclusive to them.. like God Of War, SOCOM 4 n uncharted

XBox 360, not worth the investment

pc for pc exclusive game and online MMORPG. and web surfing and stuff

ps3, for online multiplayer, and for ps3 exclusive also.

xbox dunno coz i don own one xD

Sorry, there's no such thing as Intel Xenon (mind you the Intel's one is called XEON)

And next you gonna shocked too. Xenon is actually almost the same chip with Cell as both came up in the same development cycle. Xenon is designed by IBM too, with almost the same architecture as both Xenon and Cell are from the same generation, only that both went through different strategy in their design,
Design-wise, Xenon is a tricore-chip with 6 logical cores while Cell is an 8-PPU design. But both are derived from POWER-based architecture by IBM.

As an added note, it's already mentioned by a lot that coding games on Cell proved to be a lot harder than on Xenon (XCPU). That's why a lot of multiplatform games looks a bit better on XBOX360 than on PS3, and they tend to be buggy too on PS3 (except more recent games). And all of that despite PS3 supposedly have a bit advantage on their chip. This is all thanks to the 8-PPU design which is not a walk in the park to tinker with. And that's too the reason why the more graphical-appealing games are mostly came from Sony's first party studios. So now you get the picture of how PS3 got advantage on game exclusives.

Plus it's not like there are no games on X360. And they got a range of exclusive titles too.