Sounds way worse than London. But then, we didn't queue up overnight as we had to travel overnight after work.
A few factors:
-waited outside between 5pm and 8pm, OK not bad
-8pm let EVERYONE into a large MESH and tried to filter us through a whopping THREE security checkpoints
-people were pushing and shoving and elbowing in front of others, groups were trying to form and stay together in the mosh pit
-they tried to form lines AFTER letting 3000+ people into the security hall... yes way
-despite plenty of room, once in the queue line people were cramming themselves together regardless, some dude that was on the floor sleeping, his head was under the chair I was sitting in
-around 3am they turned the temperature down and it was no more than 50 degrees, despite being in Orlando fucking Florida in a room with thousands of people everyone was freezing
-wristbands were given a few hours before the panel, but they had everyone move through the line to a station where they gave the bands, and had us go around again in another mosh pit BACK into the same exact line, so your place didn't matter, people behind you were now hundreds of spots in front
-combine this with no sleep, people being idiots, and then the morning crowd being let in causing ten minute waits for the RESTROOMS even
...yeah it could've been handled better. But I also blame the attendees for constantly breaking rules and being dumb in general.