Superman VS Thor (their first appearance in comic feat fight.)

I dont know about Supes, but Thor's first appearance only had him lift a huge boulder like it was cardboard. He also fought some rock aliens and deformed iron bars.

@brucerogers: Superman in his first appearance:

@ouroborik: Nice.

I'm pretty sure Thor has appeared in a comic before marvel used him.... so o o o o

@kirkseven: Well yeah, but that Thor was so different that he might as well be a separate character.

I am guessing Thor, he did beat a bunch of Kronans in his first appearance.

@brucerogers: technically it's never specified in the OP, but yeah I think it's probably 616 Thor. Who wins here.

Thor.