KINGDOM COME by Mark Waid & Alex Ross

I finished reading KINGDOM COME, a comic book by DC, about the catastrophic battle between all superheroes of the DC world (Superman, Batman, Wonder Woman, Green Lantern, Green Arrow, Hawkman, Original Red Tornado, Lady Marvel, King Marvel, Aleea Strange, Midnight, The Whiz, Captain Comet, Bullet Man II, Brainiac's Daughter, Bullet Girl II, Power Woman, Aqua Man, The Flash, etc...). It's the greatest Super Hero Epic of tomorrow! As such, it is set in the future, when Superman is around 50 yrs old or so, having retired from his superhero duties due to him losing his faith in humanity. After he caught the Joker, the Joker who was killed by Magog, a younger more extreme metahuman. Superman couldn't accept the fact that since then, people chose Magog over him, the man who can kill over the man who can't. Magog was considered to be the man of tomorrow and not him. And this was where the plot evolved.