Which Escanni formable makes the most sense to form the Black Demesne?

Every Escanni evil wizard tag will likely take the Black Doctrine 'religion' to form the Black Demesne. I have so far played Wyvernheart and plan of playing Esthil next, but I'm pretty sure a few others can form it normally, but which one makes the most sense to form it?

Playing as Wyvernheart, it was kind of jarring to go from a normal monarchy to an oligarchy, then back to an absolute monarchy, then back to an oligarchy when the Black Demesne was formed. Does Esthil or any of the others feel less jarring?