Batman's parents were murdered, he became a superhero and he has so much negativity is his life and character at the same time, Superman's parents, his entire race and civilization and even the fuckin planet on which he was born was destroyed. He also became a superhero but is so much more positive. If Batman is night, Superman is day. Now maybe Superman is more successful in shedding the emotional baggage than Batman or maybe he is able to put it behind himself because it didn't happen in front of him. What do you think?