These are my favorite dystopians that you didn't mention.
The Shore of Monsters by David J. Nix – 2011. Five generations earlier, a horde of monsters nearly obliterated humanity. All males are dead or ruined by a monster plague; words like 'father' and 'romance' have lost meaning. When teenager Sky joins an expedition to the shore that falls apart, she must survive amongst the monsters that roam the ruins. She gets unexpected help from a very surprising source. Mystery, action, and romance follow!
Blood Red Road (Dustlands Series) by Moira Young – 2012. In a post-apocalyptic future, 18-year-old Saba’s twin brother is stolen by black-clad riders. When tough-as-nails Saba launches a relentless search to recover him, she must fight for her life in gladiator cages, overcome enemies both creature and human, and learn to trust others for the first time. And try as she might, she can’t help but fall for the charming scoundrel Jack, who just may understand her more than she knows.
Delirium by Lauren Oliver – 2011. In the tightly controlled society of a future America, love is forbidden, classified as ‘deliria’ by authorities. Three months before her 18th birthday and a mandatory procedure to ‘cure’ her deliria, Lena meets Alex, who sends her heart aflutter. As love blossoms between the two, Lena questions what she has always been told about love, and begins to consider the unthinkable: not submitting to the cure, and choosing deliria instead. Beautifully written, but a little slow.
Incarceron by Catherine Fisher – 2007. Incarceron is a prison so vast that it is self-sustaining. Generations of prisoners are born inside, doomed to a life in prison. The novel weaves two story lines: that of 17-year old Finn, who hopes to become only the second person to break out of the prison, and Claudia, the warden's daughter who hopes to escape an arranged marriage. When each discovers a crystal key, they find that they can communicate through the devices, and pledge to help one another. The story lines merge in a fantastic twist you won’t see coming.
Maze Runner by James Dashner - 2009. When Thomas arrives in the Glade, he remembers nothing but his name, just like the dozens of other teen boys who arrived before him. The Glade, which is surrounded by an impenetrable maze, is closed at night to guard against the creatures that roam the darkness, but open for exploration during the day. Getting caught outside at night is certain death. As the boys try to unravel the mystery of their existence, a complication occurs: the first girl arrives in the Glade. More importantly, she has a connection with Thomas and a message that may determine the fate of all the Glade's inhabitants.
Shipbreaker by Paolo Bacigalupi – 2010. In a near future of rising seas, no oil, and extreme poverty, a teenager works as a shipbreaker - one who salvages rusting ships for parts. When he finds a wrecked super-yacht after a storm, he thinks his days of poverty are over. However, he gets swept into an adventure when bad people come for the one survivor of the wreck - a rich, beautiful girl who owns the vessel.
The Uglies Trilogy by Scott Westerfield – 2005. In a future society, a mandatory operation at age 16 wipes out physical differences, turning "Uglies" into "Pretties". The Pretties are allowed freedom to play, while the Uglies jealously await their turn. Ugly Tally has gotten into trouble that may forfeit her operation. The menacing government offers her a way out: find a group of rebel Uglies, infiltrate, and betray them. Tally agrees, but upon finding the rebels comes to understand the terrible price of becoming pretty.
Unwind by Neal Shusterman - 2009. In post-war future, the abortion debate has been solved through compromise. Parents may elect to have their teenage children "unwound", a process where the teens organs and body parts are harvested for others. The story follows three runaway Unwinds, each discarded for behavior, religious, or economic reasons. As the trio embarks on a harrowing journey of escape, the reader will ponder very heavy moral questions, and wrestle with how much a bad decision can affect future generations. This is a masterpiece on every level!