We saw Cap in what if beating up on the soldiers so it's not far fetched to say he can beat just the average regular Asgardians with no training at all.
Thor is, again, the God of thunder, so his powers are basically unmatchable. In summary, no. Chances are that Captain America won't be able to fight and successfully beat Thor, even with the Mjolnir. Thor is much stronger than Cap, even if he is a super soldier.
In Avengers: Endgame, MCU fans were treated to seeing Captain America finally wield Mjolnir in his battle against Thanos and subsequently gain the powers of Thor for a short period of time.
The Hulk's strength is unmatched in the Marvel universe, and even the most powerful superheroes struggle to stand up against him. As an Avenger who can defeat Captain America, the Hulk's incredible power and invincibility would make him a formidable opponent in any battle.
In the ultimate series, Captain America defeated the Hulk in a fight by avoiding his punches and striking his joints and pressure points. Meaning Cap in this series has enough strength to punch into Hulk's muscles. This Cap can definitely take a hit from Hulk and survive.
Captain America remains unwavering in his pursuit of truth, justice, and freedom, even at great personal cost. Steve Rogers' belief in doing the right thing may be his biggest weakness, leading to unforeseen consequences.
Clearly, Thanos is aware he wouldn't be able to lift it. Although it's hard to pinpoint what exactly makes someone worthy of using Mjolnir, as it's ultimately determined by Odin, who placed the enchantment on the hammer, some believe one's worthiness is measured by traits like courage, honor, and selflessness.
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.
Without the Infinity Gauntlet, Thanos stands little chance against Prime Odin. Odin is stated to be able to shatter the Earth. And he turned Frigga into stars. He has devastated while worlds, laid waste to kingdoms and destroyed demons and monsters.
So while Zeus' best feat is defeating a mountain-sized monster, Odin's best feat is defeating a monster as big as nine worlds. Odin outclasses Zeus in intelligence, versatility, strength, and weapons. Zeus simply can't compete. The winner is Odin, All-Father of the Æsir.
Although he is an extremely skilled marksman, Clint Barton is often considered to be the weakest member of the team seeing as he's just a regular guy with a bow and arrow. That certainly means that Hawkeye one of the weakest Avengers.
Steve Rogers was able to go toe to toe against Thanos for a while, but in the end, the Mad Titan was far too strong for him. It would be the same for Bucky, though his sober determination to do whatever it takes would be a -powerful motivator.
Warning: SPOILERS for Avengers #65Marvel's Loki has finally defeated Captain America permanently - by never allowing him to become a hero in the first place.
While Superman could potentially overpower Thor, blows rendered by the mystical Mjolnir would likely impose serious damage on the Kryptonian hero. With his super-speed, the Man of Steel could probably avoid the Thunder God's lightning, but not necessarily, since Thor is just as fast.
Surprisingly, the answer is almost certainly, “No.” Although Batman's will and moral compass do make him a worthy candidate for Thor's hammer, his track record with super powers is less than stellar. In several storylines, Batman has acquired genuine superpowers but frequently becomes corrupted by them.
Originally Answered: Can Superman's heat vision melt the mjolnir? No. Mjolnir is made from a magic metal, futher enhanced with magic enchantment. Thor could throw Mjolnir through a White Dwarf Star, and it wouldn't even heat up.
Could Thor have beaten Thanos by himself if he was fit in Endgame? Yes. Thor at his peak could have beaten Thanos by himself. One hit from him using Stormbreaker would mortally wound Thanos.
Warning: Spoilers for The Immortal Thor #5! There's been confusion among fans about whether or not Loki is worthy of wielding Thor's hammer, but Marvel has finally confirmed that the God of Mischief can indeed lift Mjolnir.
Although Kratos never gets to wield the hammer, given his own extraordinary godly strength that slightly surpassed even that of Thor and even being able to hold Mjolnir back with his bare hands when Thor threw it at him, it's very likely that Kratos would be fully capable of using the hammer if he wanted to.
Aside from enhanced strength and speed, Cap also gained enhanced reflexes — enough to dodge bullets from point-blank range. While Batman, though more reflexive than an average human, just wouldn't cut it in the reflexes department. In a Batman vs Captain America reflex-combat, America would take the win.
However, as it turns out, he does have one fear that holds him back: spiders. Captain America #2 – by J. Michael Straczynski, Jesus Saiz, Matt Hollingsworth, and VC's Joe Caramagna – gives voice to Cap's arachnophobia, which he reveals to none other than Spider-Man.
Red Guardian: Soviet equivalent to Captain America and a Cold War rival. Red Skull: Captain America's archenemy, a Nazi super-soldier and Hitler's successor.
