the other nfc east teams (giants/redskins), may hate the cowboys team more, but they seem to hate the eagles fans most...
me personally, i think they have absolutely no room to talk shit, being the only team in the nfc east without a superbowl.
i'm not 100% sure, but i can assume that raiders/chiefs/broncos fans feel the same way about the chargers fans, being that they are the only afc west team with no superbowl wins.