Just got back from PAX, got loads of swag and played loads of awesome games.
Saw a demo of Brink and I think it may be best of show. A possible TF2 killer, makes great uses or class systems and uses a crazy cool movement engine reminds me of Mirrors Edge.
Scribblenauts is good fun, I made a dinosaur that I could ride! Blew up a Monster with a tank, God, Cathulu, the usual stuff.
Played God Of War 3 and although it's more of the same it's still great fun and has tons of polish. Also played MAG, after going to the Sony booth I've never been so tempted to get a PS3. Also got a little hands on time with the PSP-GO, very nice, very light but not worth the heavy price tag.
Saw JoCo, Mc Frontalot and more, rekindles my love of nerd-core/nerd rock etc.
Totally worth the potential Swine Flu
If I think of any more I'll let you know.