Uncharted 3, mainly because I was thrown off by past experiences and previous Uncharted games.
I've played Uncharted 2 on Crushing, and while fucking annoying, it was still beatable. I turn on Uncharted 3 on Normal and holy shit, I wasn't expecting Drake to be that much of a knockover. In Uncharted 2 Normal, it played like an action movie -- find cover, jump on this, shoot this dude, run to cover, beat this guy up, throw a grenade. And playing co-op on Normal, it's regular Uncharted Normal, Drake surviving massive amounts of shots at once while easily punching out a thug. In Uncharted 3 Normal, it goes -- find cover, jump on this, get shot twice by some guy with a machine pistol from eighty feet away, die.
It's pissing me off, playing half of the game from cover instead of running around like Drake has ants in his shoes while shooting everyone with a shotgun.