To me, that's sorta like asking me: "How would you know Einstein was the most muscular scientist?" And I'd pause...and wonder if you meant it as a metaphor. And I'd probably say, "He had a subtle, brilliant mind." and not try to convince you of anything, but just be satisfied with saying that accurate thing. So, in similar fashion: the Christ is first the great teacher, who you could learn from if you choose, if you sought to learn the most valuable things. I was trying to learn from very many of the great thinkers/teachers, quite a long list, with some names I really gained from including Lao Tzu, Emerson, Jung, Campbell, and there are many more, but I'm not trying to impress, but instead the point is that having read very many great thinkers/teachers from around the world, I can accurately say Jesus is worth anyone's time, if the person is willing or wanting to learn the best things. So, don't think of Einstein as a weight lifter, but as a brilliant scientist, and I wouldn't try to ask about Christ as how-powerful, but think of him in terms of what he has said for us to hear, the subtle deep things he said that made the accounts, the 4 accounts of his words and deeds.