You asked, so I'll answer even though I know you don't want to hear it. Monarchy is the answer. Or some similar sort of strong-man government, maybe with some rudimentary rules about hereditary succession that are ignored any time the king's son isn't strong enough.

All this Enlightenment rights-of-man democracy crap is an interesting intellectual experiment that was sort of nominally successful during the industrial revolution, but in reality, you need to have a king to tell the rabble what to do.

Who wants to put money on any of the recent revolutions in North Africa developing into liberal republics? Ain't gonna happen. Some jumped-up army colonel will be running each one of them in a couple of years...reality...