You may also like Yevgeny Zamyatin's "We" [1]. Orwell asserted that Huxley ripped it off for Brave New World, but Huxley said that he had never heard of it.
I read this as part of a science fiction class back in college. It was amazing and well thought out!
I've read it in about 10 years ago, in my teens. It's funny because I've always thought that the Orwellian dystopia was a bit far-fetched, and the Huxleyan dystopia was much closer. Reading 1984, I feel like we're nearing both at the same time!