Space Marines, I watched others play for a while, and it's looking decent. Probably a solid 80+ review score, but thats hard to really gauge from the short floor demos. If you enjoyed the Gears of War style gameplay, Space Marines will probably appeal to you.

NCSoft no longer attends E3, so no Guild Wars 2 info at the show. This was the biggest difference I noticed with E3 this year compared to my past years of attending (2000-2006). There were many companies just not there, to the point the 3rd hall wasn't even open. I think more and more companies no longer see the usefulness of participating in an ESA trade show when they can control their own marketing message on their own time table just as well in the modern internet age.