[Three problems. ArchAngels are all equal, Bishops must command them otherwise alot of things will get screwed up, and there can't be 6 of them, as there is only 4 races. Also, if you want that ranking system, think of Aodran as the High archangel.
EDIT: Problems with the brain map:
Apprentices are at the same level as guards and merchants and whatnot, the bishops are above the Archangels, there is no High archangel.]
[Magistrate]
/ \
[Arch Bishop] [Overseer]
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[bishop] |
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[ArchAngel] [Vilicus]
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[Paladin] [Head workers and guards]
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[Apprentice] [Workers and guards]