PS3, PS2, and PS
Xbox is stuff.
True, the disks have bigger sizes... which means bigger games...
Costs less money (not for console, but free online play, PS3 Slim uses less power to be more good for our floor(What I mean by "floor" is earth, without it... where would we get the safety...(what I mean by "safety" is you will be able to walk, the disk will not get all crazy without gravity, etc.
*I.E. you can walk away, without that, you might get sucked into the sun's gravity and get fried*)))and has really great graphics, the controller isn't like a TV remote(it doesn't need that black thing on the controller and on the console) its Bluetooth, PlayStation Home, PlayStation Move, Eyepet gameplay is really cool, compared to 360's developing Project Natal... it doesn't get unresponsive(it isn't as good at capturing motion of the body, but it might be funny to see your character slap himself.).
Seriously, I like 'em both! I think Microsoft, Sony/PlayStation, Nintendo, Sega, etc, team up and make the best game consoles and games ever, it seems immature to be rivals because of business, and start some fight... in an injuring... physical... painful... way.