He talked little about the writing process but answered a bunch of questions. The most interesting things he had to say were about Firefly and schwarma. According to Brendon, Joss Whedon originally wrote the show Firefly for him. He was planning on having Brendon star in the show but Buffy Season 7 ran six months over schedule, so Nathan Fillion (who also played a psychotic priest in the final season of Buffy) took the starring role instead. The rest is history. Also, Joss got the idea to use schwarma after the Avengers credits because Brendon once came to work asking what it was. Several references were also made to it by Xander in Buffy the Vampire Slayer. To end the panel, Brendon was kind enough to do the snoopie dance for everyone.
Then there was A & E Hobby Shop. Everything in the store was 50% off and I found some great comic books. I've included some of my best finds below.
I also saw a couple of the same costumes from Philly (Red Hood, Magneto family) and more Attack on Titan cosplay.