Obviously Christopher Reeve's Superman is a class or two above Chris Hemsworth's Thor, so this might seem like a stomp, but I actually think it's an interesting one.
Nuclear Man (the second version in Superman IV: The Quest for Peace, not the faulty first one) went toe-to-toe with Supes, but never displayed the top-end of his speed - and he definitely had some exploitable weaknesses.
And given how durable Thor is - and what Stormbreaker is capable of - this could be a cool fight.
So, Thor Vs Nuclear Man: How goes it?
If you hadn't already guessed, given what I've just said, Thor has Stormbreaker.