Ok, don't laugh: After seeing James Gunn's comment the other day about how he would like to work with the Guardians cast at his 'other job', it gave me an idea. Dave Bautista as Lex. Not only does he have the acting chops to play the highly intelligent cerebral Lex but he also has the size to make Lex even more of an egomaniac.
He could be both the smartest & strongest guy around. A shining example of the future... until Superman shows up. He spent all his life to reach this point and then he is, in a flash, no longer the most important man in Metropolis. He sees this alien that is so powerful just because as a threat to humanity (and more importantly himself). I think Bautista could definitely sell it.
Plus, he has the look
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