Luthor for sure.
He's brilliant. Horribly, horribly flawed, but brilliant. Also because of his flaws somewhat prone to being controlled by outside forces - we've seen it before a lot. Brainiac influence. Apokoliptian influence. Now Perpetua. It's funny because he's got such an ego and part of that ego is strong-willed belief in his willpower and control and stuff. But then you have a kind, humble guy like Superman ... who lots of beings ATTEMPT to control ... but can't. It's a really lovely message.