However, here – in the very beginning, and at the moment when a full-fledged army is just being formed – in my opinion, the question of which faction to play – mage, warrior, battle mage – is crucial.
Personally, I prefer mages. Advantages: magic, which compensates for the weakness of archers (if any) or replaces them. Option: battle mages with the same advantages. You can attack even creatures that are more powerful than those in your army.
Best regards, Draco