Yes, there's something to be said for the central character being the central character, but there's something to be said for hubris and humility. What worked so well about Weaver's performance in Aliens was how humble she was, and how vulnerable she was as a person, while still being Rambo. That is because she didn't set out to be Rambo, it was forced upon her. She was a reluctant hero much like Frodo. Frodo never wanted the ring, but he knew he had to carry it. Ripley didn't want her task but she knew she had to rise to the occasion every time, because the people around her just didn't get it.
It was Weaver who wanted to reclaim the limelight in Alien 3. She didn't want to share it with the other actors who survived Aliens with her. Even though her film was about personal sacrifice, her hubris as an actor infected the story of the film, and she became overexposed. She overdid it. Its overexposure at its worst. But who could blame her?
Sigourney Weaver is older now. With that comes maturity. She has a chance to ignore that film that she did once to serve her own ego, and to let her character be the integral part of a much better story that she was meant to be. The task at hand for her is one of restraint, not over-zealousness. She will be sharing the stage with someone who truly deserves another good kick at the can, and hopefully that means that she will recognize Ripley's strengths and play the character right this time. Its about the story Sigourney!
