Yes, killing/enslaving all the peasants was hugely boring. (Especially enslaving: Did I enslave him or not?).
I agree too with the boring end battle. One other really boring time: The troll. He has a ton of HP, and the greens don't work on him. So, you just put the reds and wait. As for the final boss.
I have see too that evolving the hives only boost the starting armor of the minions. A bit useful if all your minions are dead but since you can revive them ->pointless. I upgrade them only for the appearance (that was cool).
Something that would be really cool: Overworld. A mix between global strategy (on a global map where you can control all your kingdom) and classic overlord (ie: You invade in the classic mode)
