EA's was pretty boring and by the book, I did like their "Beta available now" that was quite cool, especially compared to the Crew's Beta available in July.
I love the Ubi presenter, she is great and really down to earth.
For me so far its:
Ubi >> MS >>>>>>>>> EA
EA was really quite boring/sports... was also shocked at the prototype stuff for mirrors edge, was expecting to see some solid gameplay at this point.
Sony's conference is going to feature 7 minutes approx of Farcry 3 gameplay... so thats going to be cool, as I love FC3.