Necropolis or Castle (Which one is stronger?)

And on most maps, in addition to champions, there will be angels from the Conservatory. Therefore, you will have to fight with more than just cavalry. Moreover, wyverns from the hives will almost certainly be added to this army.
That makes three units.
And in Utopian maps, there will be units that can deliver the decisive blow, for example, enough Crusaders or Griffins (not to mention the three units mentioned above).
And there is no need to prolong the game – take Cil, arrive at the opponent's castle on the first week, and that's it (just kidding).