Do you want to compare Uncle Sam with Lex Luthor? Discover the powers, weakness & weapons of Uncle Sam and Lex Luthor from Uncle Sam Biography and Lex Luthor Biography. Find out all about Uncle Sam and Lex Luthor.# Check out how is Uncle Sam unique and distinct from Lex Luthor. Discover their love interest, sidekicks, family tree and the movies and games list in which Uncle Sam and Lex Luthor have appeared. Find out everything about them here!