Tomb Raider was probably to only thing that I really liked. Mass Effect 3 stuff was cool enough, but unless it works with a headset, I can do without voice commands. MW3 looked like a CoD game. Gears 3 looked like a Gears game. Kinect stuff looked like Kinect stuff. There weren't really any surprises, especially since Halo 4 was leaked beforehand (and the trailer was boring).
I'd give the Microsoft conference a C grade this year. Without Tomb Raider, it would have gotten a D.