security- yeah, I agree with Entrekin. Don't allow some shirtless guys, but allow girls to walk around in basically bikinis (*cough* not that I don't mind haha) but they should have a better definition of what is and what's not allowed for clothes and props.
cosplay showcase room- maybe I looked in it wrong, but how were we supposed to know who made them? What kind of awards were won in them?
Maybe it's just me and I've only been to AZ in 2010 and this year, but this is the only con where about 10-15% of cosplayers I run across seem perturbed or creeped out I ask for their picture. And trust me, it's not them being tired, I pretty much know the looks.