Chargers, Bucs, Saints, and Falcons all comparatively the same as the Jags. The Falcons a little better. Saints are TERRIBLE people just forget that b/c they won the superbowl recently and sort of have a little "hotness" to them w/ Katrina emotions and the team. In time they will once again drop down. The Bucs fans suck, and the Bucs are quietly in worse financial shape than the Jaguars. Chargers fans are a joke, they have an awesome team and they don't care.
Not saying the Jags fans don't suck or that they aren't necessarily the worst, but there are many other teams close in terms of shittyness.