8 / 10
Honestly it wasn't really any better than Microsofts, just different.
My main problem with this conference was there was VERY little new content. We knew about 98% of the conference before it even aired. And I expected some new PSVita game announcements but there really wasn't much there either, just more Uncharted and LittleBigplanet, and Modnation Racers.
It was by no means a bad showing it just was a little dry. And there wasn't a single "mega-ton" announcement from them either.