I'd give it and 8.5/10
A good mix of 1st party and 3rd party content;I'm actually wondering what 3rd games will be shown a Sony's conference as MS had them all. Nothing BIG was announced; platinum games wasn't the "big" 3rd party game we thought it was(and was hinted for over a year) and Crackdown 3 announcement was tamed since it was also leaked.
The only bore was the Dance Central/project spark/fable Legends and was only like 5-7 minutes, very solid conference, the best I've senn from MS since I started watching in 07