It is the Kryptonian vs the Norse God, both invincible in their own right. Let us fight it out and see who wins the laser-eyed Superman or the god of lightning Thor...
Name : Clark Kent
Affiliation : One of the founding members and leader of The Justice League Of America
Background : Cast away from the impending doom on his planet Kryptonite, he crash landed on planet Earth ( much like Dragonball Z fame Goku) and has been living there since. In his teens he finally got the hang of his awesome superpowers and chose to use them to protect earth from the wrath of the villains. He dawned his trademark suit so as to avoid being identified which was designed by his foster mother Martha Kent. He is the leader of the Justice League by his own right and protects the Earth from treacherous villains like Doomsday , Braniac and his biggest foe Lex Luthor.
Name : Thor Odinson
Affiliation : The Avengers
Background : Thor is the Norse God of Lightning and is the son of Odin , the ruler of Asgard. Being banished after defying his father he comes and falls in love with Jane Foster. Being robbed of his mighty hammer Mjolnir Thor loses all power and becomes the common man Donald Blake. Even after learning humility Thor refuses to go back to Asgard and makes Midgard (Earth) his home. He joins the Avengers and has on several occasions saved them from aliens, his brother Loki and other frost and fire giants.