While Thor is one of the mightiest gods in the Marvel Universe, he is still no match for the unparalleled power of Superman. However, even the Man of Steel admitted that Thor could be almost at his same level. Maybe the outcome of their battle would be different in other circumstances.
No. Thor's hammer is extremely durable. We've seen Superman hit with things before that didn't break. The only way I see a fight with Thor & Superman ending with Mjolnir broken is if Superman punched it as hard as he could while Thor was swinging it as hard as he could.
Confirmed as the MCU's most powerful superhero, the Scarlet Witch would make short work of Superman. Had Thanos's forces not interrupted her in Avengers: Endgame, she would have defeated the Mad Titan, and the Man of Steel would be similarly overpowered by the Avenger.
It's important to note that the rules around worthiness had been temporarily suspended to allow this to happen. As soon as the fight was over, Superman couldn't lift the hammer anymore. However, under normal circumstances, without any weird interference, Superman is worthy of Mjolnir.
The simple answer is no. Yes, Hulk absolutely smashes Thor to the ground with Mjolnir, but, he's holding both Thor and the hammer. Hulk wouldn't have been able to lift Mjolnir by himself, but since the God of Thunder had a firm grip on it as well, he was able to use it as a weapon against his teammate.
Superman could wield Mjolnir because he is, at his core, one of the purest heroes in the DC universe. In fact, Superman has wielded Thor's hammer before.
There's no question the Hulk is a near-indestructible force who comes out on top in almost all of his battles of pure strength. However, against Superman, he's outmatched. While Hulk's strength might rival that of the Man of Steel, Superman's other abilities give him a considerable edge against his opponent.
SPOILER ALERT: Loki can literally control time and space. He held an infinite amount of timelines for eternity. Season 2 Loki is arguably one of the most most powerful characters in the MCU, easily comparable to infinity Ultron, the watcher etc. DCEU Superman stands no chance!
While kryptonite is Superman's greatest weakness, he's susceptible to other forms of energy and threats. This makes Billy Batson — aka Shazam, the World's Mightiest Mortal — one of Superman's greatest opponents.
Goku is probably stronger than Thor at full power, but that's debatable. Both of them have amazing energy powers at similar levels, but the Thorforce is a more powerful source of power than Goku's Saiyan genes. Mjolnir is an amazing weapon and Thor is a master of it, giving Thor more combat options than Goku.
Ultimately, pure strength and speed will win the fight of pantheons, with the gods-given power of Black Adam simply being too much for Thor. Black Adam has speed on the level of a Kryptonian or even the DCU's version of The Flash, which is simply too much for Asgard's former prince.
On their own, both these noble heroes are capable of beating incredible forces. But for all Shazam's power, he does not match Thor's experience in using the more arcane elements of his abilities.
In the end, Deadpool wasn't worthy. While he seemingly had control of Mjolnir and the strength of Thor, it was all a mirage put on by Loki to distract Thor.
Can Thor (with Mjolnir and Stormbreaker) kill Syder Cut's black suit Superman? Yes, indeed Thor would easily win against Synder Cut Superman, but it will NOT be an easy win, because Synder Cut Superman is also very powerful and has many feats. So Thor would win, but with really high difficulty.
While Thanos might have the brute strength to defeat Thor, for example, it's a different matter when it comes to the Big Blue Boy Scout. That's because Superman remains much more powerful than Thanos — meaning that, in a straight fight, the former is bound to take the latter down.
While Thor is one of the mightiest gods in the Marvel Universe, he is still no match for the unparalleled power of Superman. However, even the Man of Steel admitted that Thor could be almost at his same level. Maybe the outcome of their battle would be different in other circumstances.
Superman isn't beating the avengers but he could take out some of the low tier beings like Cap, Hawkeye and Black widow. And others like Antman, Spider-man ,Black panther and Ironman with ease . But those of Hulk , Dr. Strange , Wanda , Thor , Loki and Captain Marvel would beat Superman.
The comics have shown the former Captain Marvel best Superman in a one-on-one fight while players of the Injustice video game watched Superman defeat Shazam by freezing his mouth shut --so he couldn't say the magic word-- and promptly lobotomizing him with his heat vision.
As the dialogue in Justice League #73 suggested, while Superman's specific vulnerabilities give Black Adam a chance against him, that doesn't mean the two are equal in power, and the Man of Steel is clearly stronger by any comparison.
But some of his variants had much better luck at corralling the rest of the world's heroes. One version of Spider-Man 2099 stands above the others, however, eventually becoming a vital savior to his entire timeline. As a result, he was able to even become worthy enough to lift Mjolnir, Thor's enchanted hammer.
While the Peter Parker Spider-Man we all know and love cannot lift Mjolnir, Spider-Man 2099 can. Miguel O'Hara winds up with Mjolnir after a long series of events that lead up to 1997's Manifest Destiny, an event comic that wrapped up the 2099 universe.
Viking Prince is DC's version of Thor. Both are rooted in Norse mythology, and both have ties to Odin. Both Thor and the Viking Prince are warriors of high integrity and courage and both are invulnerable; however, the Prince is a mortal and can be killed.
