Who do you think is more of a threat, Bane or Joker? (Comics, not movies).
In my opinion, it's rather difficult to compare the two. Bane is more likely to directly harm Batman, seeing as he is physically superior to him. Joker doesn't solely focus on killing Batman: he hurts Batman's friends, associates, etc in order to damage him mentally as well. Who do you think is a better villain?
If you think there's another Batman villain that trounces these two, feel free to say so.
Again, I know there was a thread already made about Bane vs. Joker in respect to the movies, so I'd like to compare the comic characters.