Honestly, why is Killzone 2 so highly hyped?

[shio]

Killzone 2 was hyped to hell, but after last year's great FPS quality I think the anticipation for KZ2 died down a bit. I mean, if you're going to compare it to games like Bioshock, Crysis, COD4, Metroid Prime 3, Quake Wars, Gears of War, Halo 3 and Stalker, some of the hype will definitely disappear.