Suggested by iKnowledge Haruhi and Joker both know what it’s like to wield cosmic abilities above no other. That being said, Haruhi is largely unaware of her abilities while Joker certainly knew how to use his. The main difference between these two fighters is that Joker also knows hand to hand combat and has used guns in the past. He’ll definitely win a physical confrontation here since Haruhi really depends on those cosmic abilities of her. I’m afraid that her odds of victory are slim. Joker wins.