Microsoft had two positives for me:
1) Halo 4!!
2) Neat tablet integration
EA Had this:
1) Battlefield!!!!
2) MoH sort of. I don't want another shooter game on my PC, but I might actually pick this up if it comes out on the Wii U.
Overall... I'm going to give this to Microsoft. EA didn't show anything *new* that excited me, while Halo 4 looks amazing.
I'm expecting Sony to deliver a better performance, and Nintendo to make the biggest splash (thanks to also being the only company to showcase their next gen platform).