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