I've worked security at a number of venues in the Mid Atlantic area, including in DC and in Philly. The worse fans, by far, are Philly fans. I mean at Redskins/Eagles games in Maryland, at Nationals-Phillies games in DC, at Caps/Flyers games in DC, at a Chargers/Eagles game in SoCal, at Wizard/76ers games in DC, at Eagles/anyone games in Philly, at a Kenny Chesney concert in Philly, etc., etc.