I'm not a DCI judge, but I am a judge, and I prefer GOOD over BAD. So I think that's the only bias you'll find out there. I know many of the DCI judges and I know they take their roles very seriously, and I don't think there's any logical reason why a judge would "care" about having a bias...it's just not important. It's JUST drum corps.
Wait.
Was that my outside voice?