Well to answer the thread title question the "worst" (not to say it wasn't good, as I've enjoyed every major gig I've attended) gig was probably seeing Sacred Oath at the FYE parking lot in Danbury, CT on Halloween 2009. It was cool because they had a tank from a local museum drove down and pt behind them for the show, and the 'stage' (more like little area they were standing in on the same level as the audience. It started raining about twenty minutes into the set and the power went out, although it was soon restored. No mosh pits broke out, because we were in a parking lot, and everything was soaked. The meet and greet afterwards was cool though, and it was storming throughout their set, and that made for some pretty epic moments. Not bad, just not the best gig.