PS3 exclusives did really well.

Glad to see Flower and Pixeljunk Shooter getting the praise they deserve...

Great list but Modern Warfare is too low and Borderlands is too high.

There were no threats involved. :P

Eh, Killzone 2 deserves the award in my book. I played that thing non-stop for months after it came out. The dynamic rounds, class system, and clan system kept me hooked, and I really like the heavy feel of the controls.

Left4Dead 2 is the only shooter I feel comes close this year, because the coop is just so damn fun. I've put over 20 hours into it since I got it, which is a lot for a time constrained guy like me. Honestly, I'd say these two are my favorites FPSes this gen - L4D2 for the coop and Killzone for the singleplayer and competitive multiplayer. Plus I love all the custom campaigns you can find for L4D on Steam. :D