I hate the Dark Empire comics, because they contradict the Chosen One Prophecy and undermind Anakin’s sacrifice in Return of the Jedi, as well as contradicting Luke’s character (he would have never fallen to the Dark Side).
Also, I deeply hate everything that takes place after The New Jedi Order series. The way the handled Jacen’s character in Legacy of the Force, the Abeloth plot and Darth Krayt are all stupid. The universe should have ended with the NJO in my opinion.