>>5092
Are you talking about man vs self? I love isolation and survival themes where one man is put into a horrible survival scenario and somehow comes out of it alive.
As far as my favorite theme, I don't know. Probably the one I find most interesting at the moment is the duality of man. A great example of this would be the Joker in Full Metal Jacket.
That's not my all time favorite though, I'll have to give it some thought and come back later.