I'd give it an 7.5/10 from what I saw.
1.) Sure, they did show game after game, but at the same time, were there really any BIG, ENORMOUS megatons? For me, they more or less completely played it safe, and that doesn't scream "10 out of 10 Conference" to me.
2.) $499 pricetag, ouwch.
I feel as if everyone is giving it "OMG 10/10" scores just due to the hype of the new generation, but when looking back and reflecting on all this, none of this is "Mind-Blowing", and Sony still seems to offer the better use of the cloud and Gaikai.
IMO, the ball is in Sony's court, if they drop a $399 price-tag at their conference, as well as drop a few Megatons at their show (Versus 13, The Last Guardian, and Rockstar's AGENT would be enough, launch titles anyone?) With those few things, and as long as they stay focused, they'll "win" E3 hands down, with a 10/10 conference in my book.
Personally I expect Sony to drag Microsoft through the Mud during their conference and "DESTROY" them as Microsoft intended to destroy Sony, some good ol fashioned Irony is about to play out I suspect.
