Doris Day is still alive just letting you know. I LOVE her movies. You should see Pillow Talk if you haven't, no doubt her best.
Ginger Rogers... Shes great, but i like her other half better: Fred Astaire
Rita Hayworth! What a beautiful woman she was. I Love her in Pal Joey with Frank Sinatra... I love Frank Sinatra period.
Judy Garland ofcourse is magnificent. Gene Kelly was in awe of her. And as a Gene Kelly groupie (not literally) I am in awe of her.
Marylon monroe's best film is Some Like it Hot. Its The BEST comedy of all time!
Vivien Leigh... She's either Gone With the Wind, Guys& Dolls, or Kiss Me Kate.... they're all Viviens and i mix them up. But I love all those movies so she must be great.
LESLIE CARON! my FAVORITE musical of all-time is Gigi , BEST MUSICAL EVER.
Ava Gardner, what a sex kitten. That lucky broad got to marry Frank sinatra.
elizabeth Taylor, personally i was never a fan of hers.
Lucille Ball. Genius. Love her show. Love her. Im currently watching Best Fott Forward... not really fond of the movie, but she is radiant.
Then Natalie Wood, ofcourse, West Side Story. Tragic how she died though, almost like a conspiracy in my opinion.
Some people you didn't mention: Debbie Reynolds (Singin' in the Rain, The Tender Trap), Ann Margaret ( Kitten With a Whip), Lauren Baucal ( The Big Sleep, and MANY movies)
I am also a "teenager" (17), if you will. I love love love classic movies. Let me recommend some.
Musicals:
Call Me Madam
Gigi
Singin' in the Rain
Funny Girl
Guys&Dolls
Meet Me in St. Louis
Comedies:
Some Like it Hot
Pillow Talk
Lover Come Back
Send me no flowers
Move Over Darling
Mystery:
THe Big Sleep ( The dialogue is great)
Also, why didn't you mention men? There are SOOOOOOOOO many great men from that era:
Gene Kelly
Humphray Bogart
Paul Newman
Frank sinatra
Donald O'connor
Fred AStaire
Bing Crosby
Jack Lemmon
louis Jordan
Maurice Chevalier
Rock Hudson
Tony Randall
Marlon Brando
etc.