Overall, today's E3 conferences were kind of meh to disappointing.
This Nintendo was not their worst (that still goes to Nintendo E3 2008.), but they are definitely working on something. This E3 for Nintendo felt more like a courtesy conference, "Yeah, we're cleaning up the WiiU clusterfuck... here you go. Have some 3DS games." Very VERY little support for the WiiU shown in comparison to the 3DS, which pretty much telegraphs they're planning on dumping it within a year or two.
Square-Enix was interesting for me because there were about four games I wanted to play (Hitman, JC3, TR, and Deus Ex), but yeah the conference was... lacking. Compared to the previous conferences, this felt a lot smaller and a lot less polished than any of the other 3rd party companies. Some may argue it had a cozier feeling to it, but for me, it felt like they pulled it together in the last minute. And i don't know about anyone else, but from where I was streaming it from (YouTube) the audio was really poor.
Really this year I cannot say there was a definitive "winner" (although I am fairly certain most will agree is there was a last place, that would easily go to EA). It all depends on what you're looking for to:
Microsoft had the "jump forward" mentality and was reinforcing the idea (emphasis on "idea") of supporting their audience, and also making a lot of effort to make the XBone a decent gaming platform. This conference was also one of their most well organized and didn't meander off-topic. However, saying it is one thing- implementing it is another. Microsoft has at least crawled mostly out of the smoking crater they made two years ago, but the after effects still run deep. They're on the right path, but they have a long road to go to make consumers fully trust them again.
Sony had the idea of "Gamer dreams do come true" and either announced or revealed 3 games that gamers have been clamoring about for years. The conference structure was much like the last two - if it isn't broken, don't fix it. However, the entire conference was lost in a haze of nostalgia and is pretty hollow when you look at it- FF7 remake was just an announcement. Remember how long between the initial FF13 reveal trailer came out and when people could actually play the game? Lost Guardian is cute, but it doesn't show much of anything other than a few jumping puzzles and a "move the crate" puzzle. And Shenmue was a Kickstarter announcement.
And Bethesda, while still my favorite, I will admit was essentially a conference for Doom and Fallout 4, with a handful of other games sandwiched in between. All I really wanted this E3 was Fallout 4, so for them to reveal gameplay, and looking like they're adding a lot more to the existing model AND announce it will be in my possession before Thanksgiving was fantastic.
And just so I mention them as well... Ubisoft was a conference. It wasn't a bad one, but it wasn't anything phenomenal either. It was the conference equivalent of a standard fast food cheeseburger. Nothing really stood out, but at the same time, nothing all too objectionable either. The main issue I had was that a LOT of the games relied on co-op mechanisms, which is fine and all, but sometimes I just want to play a game where I only have to rely on myself and not have to make into a group event and/or trust strangers.