The only reasons I could ever see myself transferring or starting over on a PvP server now is either to play with friends of mine, or for a better shot at more city raids. Takes forever for people over on Earthen Ring to get enough together willing enough to raid each other's cities. There are small horde groups that camp in SW on a weekly basis just ganking whoever's flagged in the city and seem to disappear when more than one person finds them at once. It's usually a few Rogues and Druids that are at it.