Even if you dislike the system's policies (I do), it's hard to say that was a bad conference.
Look at what we've been getting from E3 conferences for the past generation, this was one of the best; probably the only one that was better was the 2006 Sony conference when they made all those promises they couldn't keep.
About the only bullshit present was the time spent on SmartGlass, and even that wasn't so bad.
Lots of games, including stuff I care about and didn't expect like Dark Souls 2, The Witcher 3, and The Phantom Pain. These games are not going to be exclusives, and some of them I will buy on PC anyway, but Microsoft still had the first showing of those trailers.
Also, their streaming service (which I personally do not care about) looked better than Sony's.