If there is one thing I cannot stand when cramped up in an unordinarily long dungeon is a traditionalist tanker class that thinks everyone should follow in line behind him as though the entire party should be forever grateful he chose to grace their duty finder queue.

These tanks, as I've seen in other games, have failed when unforseen circumstances came up in the party and the normally "defenseless" and "cocky" players took up non-traditional dungeon roles and defeated said boss using a mixture of aggro sharing, kiting, ingenuity, and just plain ol' fun.

FUN.

Because, my friend, that is what makes a game.