 Alexandra is the more aggressive of the two, but, initially, neither actively hate Superman, although Alexandra researches ways of killing him as an intellectual exercise.Alexander Luthor is more compassionate and contemplative than the mainstream Luthor and questions the ethical implications of developing anti-Superman weapons, but willingly joins his wife and Major Lee.Alexander ultimately sacrifices himself helping Superman battle Zod; Alexandra, consumed by rage and grief, blames Superman and vows to dedicate her life to destroying him, claiming that the old Alexandra died alongside her husband and demanding to be henceforth called "Lex Luthor".