The Hunger Games by Suzanne Collins - Currently topping not only all book selling charts but also all box office charts, I'm assuming everyone and their dog has heard of The Hunger Games. It is a very gripping read about a very tough young heroine. If you like reading speculative fiction and aren't afraid of a little kid-on-kid violence in your literature, I recommend you skip the movie and take the time to read this wonderful series.
Uglies by Scott Westerfeld - I hate it when I can accurately predict the ending of a book after finishing the first page, so naturally I loved the Uglies series. Uglies/Pretties/and Specials show three different points of view of a complex future. As the story unfolds it becomes clear that nothing is black or white and even the people who seem like the worst villains have complex and often well meaning intentions. This series will keep you guessing until the very last page and is easily my favorite dystopian tale.
Divergent by Veronica Roth - Another young adult adventure with staring a touch chick unafraid of fighting against an oppressive society in order to save the world. Readers who can't get enough of The Hunger Games should definitely pick up this book.
The Handmaid's Tale by Margaret Atwood - While this book isn't young adult, it is definitely dark and dangerous. It pushes ideas of gender rolls and religion to a disturbing extreme and is guaranteed to force you to think. This isn't a light hearted beach-read, but it is a story that will stick with you long after you finish the final page.
Delirium by Lauren Oliver - In a world where love is considered a contagious disease and treated with medicine, Lena's teenage romance isn't only exciting, it's also dangerous. Delirium is another great example of dystopian writers asking complex questions and unweaving complex worlds in their attempts to answer them.
What about you? What is your favorite dystopian novel?