Player - you must be joking, right? In "Creeping," it's not that important, but in "Final," it's a serious advantage! The Furies will die anyway; the question is how many times and when they'll manage to attack! Therefore, in "Final," Furies are 100% effective. The "Haven" mage's resistance to weakening is unlikely to be critical. But to have more of these units by the "Final," you need to train mages in "Creeping." A stray bullet is a stray bullet, even in Africa...
Vayshan - it's unlikely you'll be able to defeat a skilled Orc without a "Hitran." Therefore, "Iran" is preferable because it allows you to train "Hitran" units. Luck is no longer as important as it used to be. At least, if you don't want to prolong the game and get completely crushed by the Orc, I suggest you forget about luck, focus on Chaos, Education, and Magic.