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The balance is indeed a bit off, but not in favor of any particular Castle, but rather in terms of hero development. There's an advantage to swords over magic :o
and the races are roughly balanced.
What I like about it is the hero upgrade system... I think it was the basis for the upgrade system in the 5th game :)...
There is no advantage of swords over magic. Usually, in an army, the role of a tank is played by 1-2 heroes at most, and the troops, while the rest are mages (tacticians). The value of mages is very high in the fourth game. One could argue that there is a bias in favor of heroes, not creatures, but that also depends on the map. Overall, the fourth game fits into the traditions of the Heroes series.
Added after 35 minutes
Here's another one! Demonesses are the sexiest unit in the game!!!!!!!!!!!!!!!!!!! And the Inferno Castle and all the monsters (except the devils) are VERY beautiful!
Exactly! What grace, cunning, elegance, and coquetry - all in one! The Mistresses look more solid, like experienced ladies (with a whip in their hand) - you can't spoil them)). Both are good. And remember the Dryads, they are also sexy girls!))

