I found this really funny video on youtube but I can't find it again, perhaps you've seen it and remembered the name of it, it shows all of the classes in the game but in a way that shows that each class is hated by everyother class, such as rogues being backstabbers and if your suddenly stunned in pvp its by a rogue and bang their gone again... etc etc, i hope my description has helped :P
Thanks

This comes to mind, but it's probably wrong:

http://www.youtube.com/watch?v=n4TyqYsC26g