In Chicago it seemed Darkest Hour got the worst crowd support out of all bands but they were still decent just not a huge fan.
And about meeting the bands: Fleshgod did their merch table the entire time and I met them and got a signed cd. Chris Barnes did a autograph session but the line was insanely long. Powerglove after their set came out to their table and signed everyones stuff. I got my ticket signed and most people were having them sign dollor bills. I know most of the bands were just walking around and during Fleshgod Trevor stood on the balcony and watched and waved to the crowd. Also the lead singer of As Blood Runs Black just walked around all day and during BDM I looked to my left in the crowd and he was standing right next to me with his girlfriend so you do have a good chance of meeting most of the bands.