Why do people feel such an urge to make sure they simply say what one is better, and not why? The mods are probably donna go insane from all the one word answers, let's actually do something with our time, people! Good example, I made it in like 7 seconds:
I prefer the 360 because it has a great Live system, and has many fun and exciting games, such as Halo 3, and Call of Duty.
Example number 2, also made in less than 10 seconds:
I like the PS3 because online play is free, and Resistance is a great game, the same with Uncharted: Drakes Fortune.
See? It's that simple. And you guys actually own these things, but you can't muster up the mental strength to write a full sentence about why you like them? Seriously, I own neither, but my opinions on both are larger than any other post in this topic.
Since I have a really good computer, I'll just buy they 360 games for the PC. sometime they release on the same day, but games such as Halo require me to wait a few months. O well, games are best on PC. Better graphics, able to enhance many different variables, can do a hell of a lot more.