If you could only keep one, which Alien movie would you keep between Alien or Aliens?

This should be a challenging survey for fans to complete. If you were forced to choose to keep either ALIEN or ALIENS – which one would you choose to keep? If you pick ALIEN, then James Cameron’s sequel is erased from existence and if you pick ALIENS, Ridley Scott’s original never happened. If you had to choose – which Alien movie would you keep?