I have played the Beta of Killzone 2 and all I can say is its the best FPS ever. I have played Resistance 2, Halo 3, COD4, COD WaW and it beats them all. I'm not going to talk about Gears of war 2 because thats not a FPS.... but it does look better graphically.
There is an amazing class system with medics, (revives others, health packs etc) assault (faster running speeds, more health etc)
Engineers ( builts turrets that kill enemies, repairs other guns and ammo etc) Scouts (invisibility, puts coordinates of enemies to other team mates etc) Tactician (spawn points, Air strikes etc) Saboteur (Disguise, C-4 charges etc)
Each of which you can mix together to maybe become an invisible sniper of a turret building healer... the choice is yours.
Also, this game is more for the hard-core gamer as you will die within a short burts of bullets. Basically, if someone sees you, your dead.
Although this game may not be very inovative,(haven't played all yet though) it maximises all the great features of others and becomes extremely addictive.
I can't really say enough about the graphics, none of the online videos do it justce. Besides Crysis, Its THE best looking game of all time, and the animation is fantastic.
I was holding off on Pre-orders until I found a good deal, and Play.com comes through again. Not only is the price unbelievable but it comes with a cool theme aswell.
I've got my pre-order, Wheres yours?