I would imagine the people who think Gears of War had the first cover system would be the new casual gamers who bought a 360 because Halo 3 was being hyped and they thought Gears looked badass. And also hadn't played either any games or just PS2 games until 360 came out. I mean, personally, I think Killzone looks better than Bioshock, from what I've seen, or at least it more appeals to my taste. Most of the upgrades seem to amount to a seconday fire system you can use in conjunction with different weapons. If the story was a bit different, it could have just been adding mechanical flame throwers or liquid nitrogen or electricity guns you could graft onto yourself. Killzone just looks more fun to me from the gameplay I've seen from them both. Not to mention superior graphically, and lets face it, if I could play two games and they both played the exact same way, I'd go for the one with better graphics.
