Guys, the Superman fight is the very definition of a non-feat for them both. There's no point debating it. It's literally 2 panels of nothing conclusive. They exchange one punch each Rocky/Drago style and then Superman knocks He-Man back but he's not terribly hurt. That's it. The frequency with which it is brought up in He-man threads will forever mystify me.
Strength/durability being a push if we compare potential and feats, it's the Sword of Power (think a low-level Mjolnir with adamantium-like cutting ability) that is the decider here.
I see this is about the same as "Hulk v Superman--" and neither one has a chance against Hulk, for the simple reason that, let's face it, both Superman and He-Man are totally GAY.
And I don't mean "gay" in the sense of 2 mean having sex with each other-- not that they wouldn't be doing that; I mean more like an entire PLANET called "Faggotia," which is just filled with naked men in a giant eternal gay-pile orgy.
Here we have one guy in sky-blue tights who flies around with a red cape, red boots, and red underwear on the outside of his blue tights, and he's secretly an even faggier nerd; then you have another who's a blonde beach-boy with long hair in a blue S&M bikini and salon-tanned and waxed body-- who likewise is an effeminate little prince who looks exactly like his alter-ego before a trip to the S&M Salon. Hello, GAY!
Almost as much as when Donald Blake discovered his sexuality AND his secret identity at the same time, after he picked up his "hammer" and next thing he knew he was "Mighty Thor!" (say it with a lisp and you'll get it).
And so, I'd say that it would end in a stalemate even if he fought BOTH of them; Hulk would charge in and say "Hulk SMASH, Hulk SMASH YOU AL-- uh-- WHA?
WHAT YOU MEN DOING? YOU WRESTLING TO SEE WHO GET TO FIGHT HULK?
WAIT a minute.....
NOOOOOOOOOOOOOOOOOOOOO!!!!
AHHHHHHH!!!!!!
HULK DON'T WANT TO SEE ANYMORE!
HULK DON'T WANT TO SMASH ANYMORE!
HULK DON'T WANT TO PLAY ANY MORE, EVER AGAIN!
HULK QUIT FOREVER!
HULK JUST WANT TO GO HOME AND GOUGE EYES OUT WITH RUSTY METAL SPOON!!!!"
And that's about it.