Testing Warriors.

Hmm... it's a pity that you can only test the army here; you need to take everything into account: magic from the castle and war machines from the castle, and special bonuses, like the Temple of Valhalla in the Stronghold.
And then we'll see that in almost all battles, there's no equal opponent for the Rampart and the Tower.
RAMPART.
Only the Dungeon and the Conflux can compare with it.