EA: D. Every year there are people who claim that EA's conference may be the best and everyyear EA continue to prove they have no idea how to host one. Why people keep falling into this trap, I have no idea. EA, no-one gives a shit about the celebrities you paid a shitload of money to just to appear on stage. No-one wants to listen to a developer go on a 5+ minute monologue about their new game. Watch Sony's conference until your fucking eyes bleed and figure out that all you need to do is show games. That's it.
Bethesda: C-. A weird conference and one that, while it had more games, I thought was a step backwards from last year. It just seemed to spend too long on some really boring stuff, like Fallout 4's DLC and ESO. And Dishonored 2 was presented really weirdly. Oh and I also deducted points because Prey reminded me of how awesome Prey 2 looked before Bethesda were fucking assholes and ruined it.
Microsoft: C+. Sea of Thieves and Forza Horizon 3 were the highlights, XBL, the FFXV demo and Minecraft were the lowlights (and they were TERRIBLE). Meanwhile, Scaleound, Gears of War 4 and Halo Wars 2 were super meh. I think my biggest problem was that they didn't really many new games, in fact they almost announced more Xbox's than new games. And between Windows 10 and the Scorpio announcement, the overall message of their conference seemed to be "please don't buy a Xbox One." Oh and the camera director was fucking useless, as bad as that one Sony had at Gamescom a few years ago.
Ubisoft: B-. I get why a lot of people didn't like this conference but I think the focus on different games like South Park, For Honor and Steep, as well as the almost complete lack of Assassin's Creed and the great hosting by Aisha Tyler made me pretty happy with it. The biggest lowlight had to be Watch Dogs 2, which was so dumb it almost seemed like it was a parody.
Sony: A. God of War, Horizon, The Last Guardian, Detroit, RE7, Spider-Man, Farpoint and Death Stranding were all fucking awesome, as was the orchestra. Even Call of Duty looked great this year, as did the FFXV trailer (in stark contrast with the demo at Microsoft's conference). The biggest lowlight had to be Skylanders, though going back to Days Gone with the ending was weird. I also think they should have showed off more of their VR games, as the launch is coming up soon and reminding everyone of even just the games they showed at PSX would've made it seem more important.
I gave up on the PC show after 20 minutes because it really wasn't showing anything of interest, so I can't grade it. And Nintendo didn't have a conference, so I'm not going to grade the treehouse.