Looking for your nominees (or flat out choice) for the Greatest major crossover comic book event from either DC or Marvel.
Not sure how to quantify "major comics event". But this would be something that effected the entire DCU or MCU, had a major implications shortly after the event ended, etc. Something that had a main mini series, tie-in issues, etc.
So things that come to mind are Crisis on Infinite Earths, Civil War, Secret Invasion, Death of Superman.
What is the greatest major comics event in your opinion?