I think I'm one of the few people that actually really liked Killzone Shadowfall. I still think KZ2 is much, much better, but I thought Shadowfall was pretty good. Then again, I don't play a ton of FPSes, because it's my least favorite genre.
The last really good FPS I played was Resistance 3. As for KZ: SF, I liked the presentation, obviously, and it had some great moments (exploring the derelict spaceship was amazing, and really made me want to see a space survival horror game from Guerrilla), and I thought some of the gameplay mechanics like the OWL were really good. Art design was top notch as well. Level design was open and non-linear in many ways, which was a far cry from the strict paths of the previous Killzone games.
KZ: Mercenary on Vita was still better. Lol. Even so, I want to see a Killzone game that actually does justice to the awesome lore of the franchise. Guerrilla...please.
Now that my KZ rant is done, some screens:
Destiny First Look Alpha:
inFAMOUS Second Son: