In which city is the alt upgrade more balanced?

I don't entirely agree. With level 2, yes, the choice is almost obvious. Regarding level 1, in my opinion, stunning and pushing them to the end of the turn order is very useful, because anyway, they deal little damage, especially at higher levels. With Zealots, yes, they went too far; if their stats were reduced to the level of Latniks, there would be balance. But in general, if we are so afraid of archers, we can make level 1 Latniks on the creep, which will protect their own, and the rest will be Zealots. But against Stronghold, Latniks are a must-have, in my opinion. Griffons, in my opinion, is one of the most interesting upgrades in the game... I already wrote this in this topic :). I don't agree with level 5. There is balance, sometimes, divine power plays a very important role, just like stone skin. And removing enchantments may not work, so the turn and mana are wasted. Level 7 is also well-balanced, but there are problems with level 6, there is an imbalance in favor of the Knights of Isabel.