If you're seriously asking, and not just trolling the internet..
I am a PS3 fan, but I adore the cartoon graphics of the Wii. The Xbox360 is good too, they are all good.
The ps3 is the most technically advanced piece of hardware, and it plays bluray video if you buy those. I think the xbox360 costs less, though.
The PS3 claims to have a ten year lifespan, due to the super long lifespan the PS2 had. People are still buying the PS2, if you dont mind kind of old graphics.
If you have to buy one or the other, simply look at the games coming out for each. Personally I prefer PS3 because I like Playstation games. Xbox360 has its own games like Halo that are pretty neat.
PS3 will soon have a "Home" video game that activates when the PS3 is powered on. It'll be kind of like second life, from what I'm told.
All consoles are always changing and updating - so just find what you like! You might like the Wii, a PC, or even a portable console like the PSPslim which has TV out.