Ion wins, and with ease, but lemme say this. I hate the word omnipotent. Simply because, when its used in comics, its hardly ever true. Ion has near omnipotent power. Lucifer has near omnipotent power. God is omnipotent. If someone made the thread of Ion vs Lucifer, chances are it'd be firmly in Lucifers favor. Why?? Isn't Ion omnipotent?? No, he not. His power appears to be so, to those on a smaller scale. To bugs, we probably appear as Gods, if there were such a sentience in their brains. But to us, Superman and Surfer would be gods. Its easy to say that they seem to be omnipotent as well. I say all this just to prove, there is only powerful, more powerful and then God. Thats all. No one short of him can truly be described as the o word.