If you look at it Superman doesnt have much on Goku.
Goku has fought incredibly high speed hand to hand combat scenarios millions of times.
and obviously the best hand to hand fighter.
Destroyed all sorts of Superman and above level villians while already injured.
He gets powerful from his surroundings as well. Who needs laser Eyes when you have the fuckin Dragon fist.
He can instant transport to a planet with Krypton and fire a shard of Kryptonite into Supes chest.
Goku has reached his God level already so nuff said there.
New question.
Chichi vs Lois Lane?
So funny, because if Goku were as fast as Superman he wouldn't need a spaceship to get to Namek and back. He wouldn't have to teleport anywhere, and he would nuke whatever planet he was on doing so. Your assumption that Superman hasn't fought hand-to-hand scenarios as many if not more times than Goku against stronger opponents than Goku can even comprehend is incorrect and I will go ahead and say to check out a place called the OBD. They have more than enough info to put your idea to rest.
Superman has existed in print for about 60-70 years now, and is still going. DBZ is a fraction of the length and even fewer have Goku actually fighting anyone.
Superman can punch him hard enough to tear a hole in existance, literally retconning his universe. Goku can't even get himself off of a mountain when pinned by weak energy bands. If his strength were comparable, he could fly while pulling the mountain off the ground alongside him. Or the Planet in its entirety.
Dragon Fist? You realize thats a plot device, right? Also eye beams used to restart the sun pretty much beat out dragon fist, something Goku is too slow to ever actually have a chance to use.
To my knowledge he needs to know where such a planet is (which on account of kryptonite having no ki signature would be impossible on top of him never seeing or knowing the existance of such a stone), be able to touch superman (being instantly dead prevents this) and have time to concentrate on the area long enough to teleport both of them a much farther distance than anything Goku has ever shown to be capable of doing. Meanwhile, Superman is enjoying a Pina Colada out of a cup that was once Goku's skull less than a second into the fight.
His "god" level isn't even "god" level. Their "gods" that were once dragons weren't even powerful enough to kill Sayian Saga Vegeta and Nappa before they landed on Earth the first time, so Goku becoming a "god"? When he starts tinkering with the omniverse unintentionally by flying too fast, to the point where the actual omnipotent beings of that omniverse have to ask him to slow down, then I'll be mildly impressed.
All of his villans aren't even Superman fodder level, by the by. And no, Goku cannot breathe in Space at all.
Before anyone else posts something stupid, be reminded that Goku loses to people like the Powerpuff Girls universe, the MLP universe, Spongebob universe, and the fodder of most any American-based superhero comic franchise. DBZ as a whole is a very weak franchise power-wise and they are outclassed by a lot (and I mean A LOT) of other manga titles. Tenchi Muyo, Gurren Lagaan, and JJBA are just the beginning of a very long list of titles. Theres also pretty much any american based cartoons like Looney Toons and most pre-Live action Cartoon Network and Nickelodeon animated features which beat out DBZ as a whole.
Also locates the dragon balls and all sorts of spaceships. Some of which Goku has trained in while en route to next location. 
