I'll throw in one thing that hasn't been mentioned:
I've twice come across high-ranking judges in the second round who first look for sediment before opening the bottle. If it wasn't there, they said out loud, "counter pressure filled", and proceeded on the assumption that the beer would be oxidized. Both of these guys really ticked me off, as I felt none of the beers were oxidized, but they wrote it and scored it down.
Because I'm sure that there are more judges like this, I prefer to enter bottle conditioned beers.