- Which faction is stronger? (Necropolis, Tower, or Conflux)

I'm betting on Necropolis. Once, while playing against two AI opponents on 200% difficulty, I assembled an army of 10,000 skeletons, while other troops simply remained in the castle. My AI opponent had a Conflux castle, but the presence of 80 Phoenixes in his army didn't save him, not to mention the other minor units.