I haven't through to many but I enjoyed Uncharted and started Uncharted 2. I don't mind Killzone 2 but the color pallet is all pretty much the same and is getting boring. I did play through Killzone 3 at a friends co-op and it had more variation, I'll play through that one next.
I have Haze because I am a huge Free Radical fan while the whole game isn't terrible there are some very ugly textures and some levels look almost last gen others look pretty good. I have read about the troubles and mistakes they made developing it its really to bad, hopefully the next Homefront game they are doing will be AAA quality then maybe they will return to TImeSplitters ;)
Red Dead Redemption. Outstanding display of how a game should be made. Wonderful story, graphics, characters, plenty of things to do, great gameplay and DLC that makes you want to play it (Undead Nightmare, online Poker and Liar's Dice). I'm not too sold on the multiplayer, but the single player is so good I just ignore it (aside from the online gambling DLC).
Metal Gear Solid takes the #1 spot of my all time favourite games, but RDR follows behind at #2.
"My name is Spartan Jay, the greatest MW3 player of all time. Because I am on your team, this team will win" ~ Spartan Jay