I was excited for both, until I read that Brink won't have OHK melee, snipers, or shotguns. Even with headshots. All three of these are completely useless now. Melee, because unless it's a complete stealth attack, the other person will just shoot you, or if it's anything like UC2, drop a grenade.
Shotguns are useless now because that's how they work. They're a one hit kill at close, and useless beyond that because you have to fucking pump them. This is game balance 101, The slow, short range gun gets lots of damage. This makes sense for semi-autos, but not pump-action ones.
Snipers were already going to be weak in Brink given the characters speed and mobility, but now they're going to be beyond useless. Even in a wide open game like Bad Company, if your first shot fails to kill them, they'll probably get away. In tight urban environments, say hello to lots of assists.
The only way any of these will be at all useful will be if all the guns take forever to kill people, which makes the combat less satisfying and makes it a no purchase for me.
Bulletstorm still looks cool though.