Yeah, I know of lots of reasons they couldn't really do this, the most obvious of which is players rigging it for easy boss kills. But let's just say you stopped by Blizz HQ one day and they offered you the opportunity to log in as one of the raid or dungeon bosses, or maybe even a world boss, so you could try your hand at using their abilities to the max to really give players a good workout. Which would you pick? For maximum fun and mayhem? What evil strats would you construe that players weren't expecting?