I have a feeling that Ben is about to get a nice boost. As for this thread, several characters are in the wrong order. Hercules should be able to stalemate with the most recent depiction of He-Man, Thor would win, The Hulk would win, Hyperion would win, and the rest would be soundly defeated. Some worse than others. As I said before about Ben, I have a gut feeling that some changes are in store for him in the near future. I could be wrong, but...
Classic He-Man could clear. Maybe immortal Herc, maybe Hulk, maybe Hyperion could beat him. But I wouldn't bet against Prince Adam. He was "the strongest their is" before Hulk tried to steal the term from him. And he was always as strong as he needed to be.
Yes and no. I'm actually one of the ones that perpetuated this argument on KMC, back when He-Man was a half-remembered 80's cartoon and no one had actual scans of him. When goober and I made the HM respect thread, it was the first time 80% of the forum wasn't just talking out of their ass.
He has more suspect durability showings than the others, true. But so does PC Supes, for example. Yet he'd run a train on this gauntlet. Now, I don't mention that because I'm going to talk about the fight against PC Supes (biggest non-feat in history on both sides, and worthless in a vs. context). But because the era he was from had more inherent PIS variability.
If we want to hold that against him, he probably loses a majority to 3/4 of this list. But he's also stronger than anyone on this list except perhaps the best versions of Hulk.
The Hulk has always been the strongest one there is in terms of ownership of that slogan. He Man is a young character in comparison, unless you're going to tell me that he appeared in comics before his 1980's cartoon debut. Prince Adam (He-Man) has no real competition on Eternia because he has guys like Beast Man to kick around. What do you Think Thor would do to those guys?
Hulk fan-wank is almost strong enough for you to be right these days. Still, as a walking strength plot device, even Big Green is behind in comparison to what Adam used to do. When "strong as he needs to be for any given challenge" is literally written into your power set (or was, at least), and the power source is a multiversal nexus, I think even Hulk's roids fall a bit flaccid.
Now, an argument could be made for Hulk > Adam in durability. And therein lies the debate. Or speed, with someone like Hyperion (though HM had bullet-time feats, minimum).
I don't have a He-Man dur smilie. So, conceded I guess.
Not talking about literal ownership, but portrayal. Until about a decade ago, this wasn't even a contest. The absurdity Hulk fans are used to these days used to be sole property of He-Man, but in an era that could more willingly accept obvious violations of logic for the sake of plot.
Thor would win with Mjolnir. I think he has no chance H2H against He-Man. If you know how big a Thor fan I am, you know I don't say that lightly.