7. Justice League From Injustice: Gods Among Us
In the video game and comic franchise, Injustice: Gods Among Us, the Justice League still calls themselves by the same name. That's about the only similarity between the two universes because the Injustice universe is about as dark as one can get.
After the Joker destroys Metropolis, killing Lois Lane, Superman loses his cool and thrusts his hand through the Clown's chest. As you might imagine, this not only kills the joker, but surprises Batman and everyone around him. Superman decides he is fed up with the old way of doing things and sets out to create a New World Order under his totalitarian rule.
Superman reforms the League after opposing Batman and many other of his former friends. In the end, it's the Dark Knight who succeeds in recruiting Superman from the regular DC Universe who comes in to defeat his darker, alter-self.
What makes the Inujustice world so compelling isn't that it takes place in a darker timeline or alternate "evil" universe, rather, it takes place in a world where Superman is pushed to the breaking point proving anyone can be pushed over the edge—even the Man of Steel.