I main Nariko. Really she's all I play. I'll probably have Kat as a 2nd since I loved Gravity Rush. And let's face it, Kratos is no one's main for a reason. He's a win button. Sackboy is OP for now but at least you have to have a stupid turtling strategy with him. We all can play with Kratos and win with him. Just press square a bunch of times and forward square when someone is coming in or rolling away from you.