The space battle portion that will be released as an add-on look better than any space sim I've seen. The game's still a long way out. I didn't see, but it seemed to be the runner up in everyone's book. Wolfenstein was drawing big crowds. Soldier of Fortune 2 also was getting a lot of attention.
Sigma looks like it has a chance to be a wonderful.
You'll laugh when you make a hippo with wings and watch it fly. It's a pure RTS game with very little building. Games are designed to last a half hour. Age of Mythology grabbed me too. It's a standard Ensemble RTS, but I like the inclusion of heroes, mythical creatures, and spells.