Without Megatons, why would anyone expect the press events to be awesome? All they end up being is a presentation that meets a checklist set of requirements, and that is that. All three did this, but the lack of Megatons were disappointing. I would put Nintendo first, not by a lot, because they didn't manage to give a price point, or release date. Sony did ok, showed what they had to. Microsoft did also. Still, no price points, or price cuts, no surprises or anything else.
And, in regards to Ubisoft, I believe the feeling may be this way due to surprise announcements. Watch Dogs has been generally agreed upon as THE game of the show, and blew about everyone away, for the level it is at. Yes, we finally get a game on a fully functioning city the way that game is. It is Hacker's Creed.
By the way, there were no F's. To get an F, you would have to drop to THIS level:
