BEST dystopian book series you have ever read?

Okay: I'm quite an addict to dystopian books and book series right now so I am CRAVING for more dystopian book series. I'm just going to say 3 books (or series) that I really liked: Divergent, Uglies, The Giver. I wanna hear your opinions. What do you guys think are your top 3 dystopian book [...]