Which bad guy / villian is the most evil?

This polls asks: which Sci-fi group of “bad guys” is the most evil? It seems like a simple question, but it’s actually quite tough.

  1. The Combine Empire (from Half Life)

  2. The Galactic Empire (from Star Wars)

  3. The Covenant (from Halo)

  4. The Cylons (from Battlestar Galactica)

  5. Andross’s Army (from Star Fox)

  6. The Shadows (from Babylon 5)

  7. The Borg (from Star Trek)

  8. The Ghoul (from Stargate)