Kat Banyard's Equality Illusion is pretty good for this age group.
These are all good too:
Judy Blume's Forever
Meg Cabot?s Missing and Mediator series as well as All-American Girls
Trudi Canavan?s Black Magician?s Trilogy
Cassandra Clare?s Mortal Instruments series
Suzanne Collins? The Hunger Games series
Alison Croggon?s The Books of Pellinor series
Ursula Le Guin?s EarthSea Quartet
Dodie Smith's I Capture the Castle
Susan Terris' Nell's Quilt
Margaret Atwood?s The Handmaid?s Tale
Rachel Caine?s Morganville Vampire series
Marjane Satrapi?s Persepolis
Dorothy Sayer?s Gaudy Night
There was a thread a few years ago in Feminist Book Club called "Books every teenage girl should read".