Quite simple, which is the best evil alien in films or TV series? I'd go for the creature out of Alien and the Daleks. Alien gets the vote because they are virtually unstoppable and even when you kill them they can still cause uber damage. The Daleks also get my vote because not only are they xenophobic, genocidal maniacs, they have got the advance technology to back it up and the intelligence to use it (they can travel in time, which is cool
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