Hotline Miami is great on the Vita. The only other recommendation I can make from the limited games I've played on it is The Walking Dead. If you haven't played it yet, it looks amazing on the Vita and runs pretty well.
My cousin and I just picked up Friday and Sunday tickets. I'm really hoping for the Giant Bomb panel to be on a Friday, but if it ain't, then I always have the archive to watch. This will be our first "videogame convention" experience and we were just happy that all the passes weren't sold out.
I just picked it up about a month ago and have been slowly making my way through it. I'm still in the Undead Parish and fighting the winged gargoyle boss on top of a rooftop. I can definitely see the appeal of this type of game. Been thinking of picking up Dark Souls 2 when it comes out even if I don't get around to beating the first one.
I'm liking it. As a mostly Recon player, it's nice that that class now has the ability to take on a tank or jeep with C4. Also, Zeroing is a neat mechanic that takes some getting used too. Playing on the 360, it looks and feels a little janky at times but, still liking my experiences with it.