Do you know what I have ALways liked about Norman's insanity?
His may be the only insanity, except maybe the Sentry's, in the MU or for that matter the DCU as well, that seems like the real thing. Which is to say it's scary, somewhat ill-defined, and most of all, SAD.
The Joker's is a kind no one ever had. Crazy Jane's was...well, I won't go there. But in Norm's and the Sentry's case, it seems like a real sickness, that they're helpless to stop and that makes them miserable.