PS3 has free to play online, which is always convienient. the controller is nice and small and feels comfortable in your hands, and the system doubles as a blu-ray player, this thing really does almost everything, the PS4 should have a built in coffee machine or something! now let's discuss exclusives:
Killzone is like a futuristic WWII. you play as Tom Sevchenko, Sgt. first class of the ISA (allies) and you fight the evil helghast (Nazis).
Uncharted is a third person shooter, and it has to be one of my personal favorite game franchaises. you play as Nate Drake, a mercenary who is looking for a lost city (el dorado in Uncharted 1, Shangri-la in uncharted 2, atlantis of the sands in uncharted 3).
Littlebigplanet 2 is a very cute game which puts you into the shoes of an anthromorphic voodoo doll named sackboy/sackgirl. your mission is to save littlebigplanet from the negativatron and his army of red meanies. the game also features a moonworld that neighbors littlebigplanet. it features several craters that can be changed into custom levels to share with the world.
Metal Gear is a very popular and famous game franchaise. you play as solid snake, and you have to stop your evil twin brother liquid ocelot.
Resistance 2 has a very fun co-op experience, my favorite class is the soldier. the other classes you can choose are spec-ops and medic, and they all have different special abilities and weaponry. in single-player you play as nathan hale, a soldier who has to stop the chimera invasion of earth. the chimera are a race of evil aliens who believe that they are the next step in human evolution. they use parasites to turn people into chimeras. and that about sum it up. people are hating on the PS3 for some reason. also, during the spring the terrorist group calling themselves anonymous hacked PSN and shut it down for months. it's nice to see somebody who doesn't say the PS3 is for Fagolas for once, i think you will enjoy the PS3 very much, cause i know i did.