Okay there are multiple things to cover here. First of, fighting skills/experience. Both typically relied upon their powers, but TCO used some more hand to hand combat than king. TCO’s fighting style often involves him physically attacking his opponents in close range. King does do some of this, and holds his own against the stick gang, but I don’t think it’s enough against TCO. Secondly is their willingness to fight. King lacks this willingness. He will fight, but he won’t be so aggressive. After all, his original plan was to capture the stick gang without fighting them. And throughout that, he never intended to harm anyone. During his flashback, king realizes that by taking revenge on Minecraft, he’s actually hurting those around him. King will fight if he needs to, but he will try to avoid conflict. TCO on the other hand, fighting is his first instinct. And sure, sometimes he will realize that his actions are wrong. But ultimately if he faces a problem, his first choice is to try to physically fight it. That’s why I think TCO should win. But that’s just my opinion