The strongest castle in Heroes of Might and Magic IV.

I apologize in advance to the fans of the Barbarians, but I wouldn't even give them last place. Except in special situations where magic is limited (level settings, artifacts, campaigns, etc.), Magic clearly dominates the game, while Might is secondary. More precisely, the latter is derived from the former and always depends not on quantity (units ;) ), but on quality (magic level ;) ).
Therefore, the advantage lies with the one who has better developed magic (and defense can also be achieved through artifacts and spells).
If you rely on your troops, then Life and Nature are the way to go. If you want to "take down" the enemy, then Haven and Necropolis are the best choices. Any combination is a plus :smile02: