While Sony was lacking in the surprises this year, they still had more games I want to actually play than any other conference. I think Ubisoft walks away with the overall win this year though. They came with the announcements and the surprises.
Ubisoft (Skull & Bones, SP, Crew 2, BG&E2)
Sony (Uncharted, Horizon DLC, Shadow of the Colossus, Detroit and SPIDER-MAN!!!!!)
Bethesda (overall presentation although none of the games really interested me)
Tied for last:
MS (BC, Metro and the rest all all multi-plats—Life is Strange, Anthem)
EA (Battlefront 2, A Way Out)