Now, I am a 360 owner...so are you ready for my bias comment? Yes?
Well, sorry, you won't get one.
It looks actually amazing and the graphics really made my jaw drop. However, I don't think it will bring anything that new to the genre, unless the developers are keeping it a tight lipped secret. To be perfectly honest, whilst reviews might make it appear to be a better game than say, Halo 3, I don't think it will be.
(I'm really sorry for using Halo 3 as an example but it's the FPS face of the Xbox itself.)
Class multiplayer? Im sorry, CoD on both consoles has already done that and succeeded massively whilst Halo 3's multiplayer has yet to be beaten for popularity. Dark, gritty, amazing graphics? Gears of War 2 has already shown us this. So yeah it's a bit shiny, but nothing new.
What I want, is this game to come out and prove me wrong. Great games do that, prove people wrong and come out amazing.
Now, I loved Killzone 1, I think it was a brilliant game, I didnt care for how slow and clunky it was, I enjoyed every second. I look forward to Killzones attempt to smash the barriers and extend the genre in a good direction instead of acing all the predictable aspects of a FPS.
I still hate Ps3 but I feel myself wanting Killzone 2 to do well.