I got back earlier as well, I was also there on Thursday afternoon.
Personally loved the hell out of Metao Gear Rising, just crazy madness. As expected if you liked Bayonetta, you are most likely going to enjoy it.
Far Cry 3 was the biggest surprise for me. Possibly because I went in with no expectations but it ended up being my second favorite game there.
GoW: Ascension was....well God of War so I loved it.
Tomb Raider was a little taste of what is sure to be an amazing game next year.
Pretty surprised at the amount of freedom we had in the Dishonored demo. Access to a lot of the powers, great fun experimenting.
And also one game that will probably go unnoticed by many there is Ni No Kuni, which plays and looks bloody amazing.
I just wish I had seen KSI