Who has teh awesome. OMGWTF it looks sexy, and with AI good enough to make shit interesting. X-fags need not apply
It's a pretty damn good game. One of the first games on PS3 I got, it's fucking BEAUTIFUL. Like, I've never played or seen ANYTHING that looks more realistic. The AI is nice, the campaign is pretty long (I'm not through it yet, actually). It's worth buying.
It was ok, the online is good, but I still find myself playing call of duty much more for that. Sad thing is, Killzone is pretty much all Sony has to offer for online the entire life of the PS3. Compare that with the loads of fun online games that come out all the time for the 360. Halo, Call of Duty. Gears, left for dead etc.