How many much can understand, when we play the game at easy level, the AI sends us every unit he has in no time, whatever are soldiers, knights, monsters or siege (And more if the AI controls the fortress), so I thought on separate the Easy difficult on 3 stages like this.
Easy 1: Only uses basic sword men, pike men and archers and builds the buildings needed for recruit them.
Easy 2: Uses the same units as Easy 1, but now recruits elite units and basic chivalry/monsters, and only some heroes.
Easy 3: In this the AI can use everything of Easy 1 and Easy 2, but also can recruit elite chivalry/monsters and use siege, alongside recruit all the heroes.
With this, surely the ones that began to play the game will not feel so harassed by the Easy AI with everything he sends.