Debbie Reynolds was in one really great movie (Singin' in the Rain) and a few minor ones (The Unsinkable Molly Brown, How the West Was Won, etc.)
Janet Leigh was in several cult like classics--Psycho, Touch of Evil, The Manchurian Candidate, Bye Bye Birdie, and The Vikings.
Carroll Baker did some small roles in a big name movies: Giant, How the West Was Won, and The Greatest Story Ever Told. and she stared in sleazy roles in a few more--Baby Doll, The Carpetbaggers, Harlow. but she was never a big name draw in a big movie or a well respected classic.
Kim Novak was in two of my favorite movies: Vertigo and Bell Book and Candle (not great, but I like it.) but her career ended before it really began.
Joanne Woodward did The Three Faces of Eve and The Long Hot Summer. and unlike the other ones listed who continued to do cameos or lighter parts, woodward did a couple of meaty roles after she aged: The Glass Menagerie and Mr and Mrs. Bridge.
so, in the end, I've got to give it to Janet Leigh. of these, she was in the biggest number of movies that are still well known and loved.