Hi! To elaborate and clarify on this, the classes from different factions will have their base stats being determined by the faction they belong to, not by their class, which may lead to opposing cases such as these two, where the Black Hand have strong archers and the Darfari have weaker ones.
The same principle applies to HP, resulting in a similar behavior where certain factions have different values for the same classes. It might make more sense to compare the same archetypes between factions than different archetypes within the same faction.