In which city is the alt upgrade more balanced?

In my opinion, the Necropolis has one of the worst balances. The creatures of the Sylvan, Fortress, and Haven factions are the most balanced. It’s difficult to choose creatures for the Dungeon faction. The difficulty lies in clearing neutral creatures; you constantly have to return to the castle to upgrade your units. The Necropolis doesn’t really have problems with clearing neutral creatures, but it’s difficult to choose the right creatures before a battle. I prefer this composition: skeletons (3rd tier), stronger zombies, specters (2nd tier), as they are more useful. I honestly don’t know which vampires to choose; I’m leaning towards the princes. Liches (2nd tier) are better in battle. Although in a fast-paced game, if you manage to build up your forces, the 3rd tier liches are better (but the chances are slim). I’m not sure about the deaths, and the 3rd tier dragons, because they look better. It doesn’t really matter which dragons you choose.