Quote Originally Posted by labcoat View Post
ISFj vs. ENTp.
Also a valid

Quote Originally Posted by labcoat View Post
People who type Batman as ISTj and Joker as ENFj actually have to believe that the two are duals. There is just no way to make sense out of that.
Ti vs Fi Batman I guess? From the Wiki article, one Batman commented that the Joker operates on bizarre internal logic that makes sense only to him.

One common Joker trait seems to be that he defines his very existence by his ongoing conflict with Batman. He's just perpetually playing games with his archnemesis. Also, Duals can be as much opposites as Conflictors, each in their own way. I understand Conflict is a difference of values & operating assumptions, while Duality is a difference of key "personality" (for want of a more suiting term) traits.

Anyway, unfortunately, the more I think about it, the less settled on any one opinion I get. I hope you don't mind a bit of circuitous debate