In the mid-late 90s to early 2000s, both DC and Marvel came out with stories about our favorite superheroes in alternate futures where things have gone very wrong. DC had Kingdom Come, where Superman retired after the public preferred superheroes like Magog, who actually killed villains like the Joker. Meanwhile, Marvel came out with the Earth X saga, which was split up into three miniseries (Earth X, Universe X, and Paradise X) about what happened when the Earth was forcibly mutated with the terrigen mists (ironically, this event actually happened in the main Marvel over a decade later). Kingdom Come basically asked the question about how much trust we should have in the heroes to do the right thing. Meanwhile, the Earth X saga saw what the heroes had to go through to still protect people. So, the question is, which story is better? In my opinion, Kingdom Come is better, mostly because I still remember it better.