Best new IP of the 7th generation

[G2ThaUNiT]

Gears of War is my personal pick with additional details in my original post, but the other IPs that have stood out to me the more I think about it, that haven't really been mentioned so far would be

Portal
Left 4 Dead - probably the best co-op shooting experience to date still
Dishonored
S.T.A.L.K.E.R.
Prototype
F.E.A.R.
Borderlands