John Constantine vs Dr. Strange
Those of you who read the Hellblazer comics should know how powerful Constantine is. He battles Angels and Demons night and day and mostly at the same time. And one of his feats was awaking a dead corpse and reburying him again without actually releasing the corpse's spirit, leaving that man to spend for the next twenty years aware of the worms eating his corpse. And that was done when he was 9 years old, btw.
So I think this is a good battle. What do you guys think? Who'd win?