The AP balance should be based on Warriors Rogues and Archers not on Mages.
Hailstrike aside the spells are strong but not extremely broken -> 1 AP is alright.
Dont forget that spells have a rather high cooldown and mage autoattacks are kind of weak.
I think dual daggers, 2 handed and 1 handed are all in a good spot right now.
Because of that i dont think we need to change the max AP or the AP/round.