Which castle do you like best in Heroes 2?

Necropolis is quickly defeated on difficulty levels starting from Hard. When enemy heroes immediately flee after a couple of turns. In a week, they manage to "bless" the map five to eight times, while your undead stand around scratching their worm-ridden backs, watching the fleeing enemy. After such entertainment, no number of skeletons will help. The Necromancer's trump card is a large number of skeletons, vampire lords, and liches. But what good are they if the enemy keeps running away?