My apologies for not replying sooner, lmspear, and thank you. Dunaway is an interesting case - she hit it big in her twenties with Bonnie and Clyde and then lost her way for some time until coming back big in the middle-late Seventies. Unfortunately she didn't have the great post-Network career she should have had, for reasons both personal and professional. She was great in Mommie Dearest but the performance stuck to her and also she was hitting her forties. I always liked her a lot. She's a real star with a great face for the camera, and she can act.
On those occasions when I've seen Rowlands she struck me as an admirable actor with a tendency to go overboard, so I'm not really well versed enough in her career to comment. (I'm not a big fan of the movies directed by the late John Cassavetes.)
Redgrave hasn't had a conventional star career but then I doubt if she wanted one. She got off to a good start from the beginning, with Laurence Olivier announcing her arrival into the world onstage at the Old Vic with Dad at his side. It's interesting that, like Meryl Streep, she was never a movie ingenue - both of them were almost thirty when they became movie stars.