Eren is the capable main character from Attack on Titan so there’s no way that he would go down here without a fight. There are only a few characters in the franchise who can hope to match up against him. Ymir isn’t one of those fighters and she would certainly be in for a rude awakening against Eren’s might. He didn’t make the Survey Corps because of his reputation after all…he did it with his skills! Eren Jaeger wins.