Who can beat Thor? In his normal form, with his classic power levels, Thor has openly stated that the Hulk is one foe he can't beat. His only option is to use his full strength to hit the Hulk so far away that the conflict can be abandoned.
Over 12 issues, Thor is defeated multiple times by the five new Phoenix hosts: Cyclops, Colossus, Emma Frost, Namor, and Magik. At one point, Colossus is even able to smash Mjolnir away from Thor's hands, proving Phoenix is a strong force not to be messed with.
Hercules has matched his strength with Thor on more than one occasion over the years. The two gods have gone back and forth, with each one taking a decisive win over the other. Hercules even proved he was worthy of Thor's power when Odin selected him as his son's temporary replacement.
Of the OG 6 in MCU, Thor is easily, hands down, the most powerful of them, followed by Iron Man. None of the other 4 come close.
The Hulk is an incredibly powerful Avenger in the MCU. He effortlessly defeated Chitauri Leviathan and Loki in the first Avengers movie, and in Thor: Ragnarok, he proved his dominance by winning a gladiatorial fight against Thor.
Scarlet Witch
During Avengers: Age of Ultron, there was a sense that the two strongest characters on the roster that fought Ultron were Thor and Hulk. But as it turned out, the team unknowingly included a much stronger character in the form of Scarlet Witch.
Ghost Rider wins in a fight against Thor. Even though Thor is physically stronger than Ghost Rider, Thor has nothing in terms of magic to throw at him due to Ghost Rider's immunity to most types of damage and his ability to reassemble himself even after the most severe damage.
Captain America may well be one of the greatest fighters in the Marvel Universe, but even years of combat experience and an unbreakable shield can't match Thor when it comes to sheer power.
Thor: Who wins? Thor wins. Not only is Thor a better combatant and more experienced, but he also can be stronger than Shazam by using Megingjord to augment his superhuman strength.
Thor is Immortal, Not Invincible
In Avengers: Infinity War, Thor revealed that he was over 1500 years old. It's clear that age doesn't affect him the way it does normal mortals, as with most immortals, he is aging at a slower rate. While Thor will eventually die, it will take thousands of years for it to happen.
Thor, son of Gods, has enhanced longevity, augmented by the Golden Apples of Idunn. He also possesses superhuman strength, speed, agility, durability and immunity to most diseases.
It should come as no surprise that, in a one-on-one battle of Zeus vs Thor, Zeus would easily triumph.
Like most Asgardians, Thor is vulnerable to particular types of magic. One type of magic of Thor finds himself particularly vulnerable to that magic meant to charm an opponent. This makes Thor vulnerable to foes like Enchantress and her younger sister Lorelei.
Spider-Man has fought by Thor's side many times. He knows how the Norse god fights, and he knows that it would be impossible for him to beat Thor. He's smart enough to know the only hope he'd have against Thor is with a group, one that would distract the god long enough for Spider-Man to make a difference in the fight.
Well, it's about even. Hercules' strength is rarely matched. There were times when he even overpowered the Incredible Hulk – a feat that not even Thor could complete. So, when it comes to physical strength, Hercules is the strongest.
All in all said, Thor was a whole can defeat Hulk. A large part of that is being able to wield Mjolnir. Hulk cannot keep up with or match Thor when fighting with this might weapon. Hulk struggled to defeat in The Mighty Thor #385 even when using three of Thor's weaknesses against him.
His lightning attacks could disrupt her energy manipulation abilities, giving him an even more significant advantage in battle. Thus, Thor is undoubtedly one of the few Avengers who stands a chance against the formidable Scarlet Witch.
While Batman does have some of the characteristics that would allow him to lift Mjolnir, he also has committed several acts that disqualify him. This is a man who once kept extensive files on his allies in case he needed to take them down, files that were stolen and used against said allies.
Mister Mxyzptlk, or Mxy (pronounced "mick-see") for short, is a magical imp from the 5th dimension whose powers are limited only by his imagination and self-imposed rules. He is one of the few beings in any comic book universe who can toy with the likes of the Immortal Hulk at his whim.
Armed with his new tools for battle, Thor defeats the Angry Titan by smashing his head with Mjolnir. In Avengers: Infinity War, Thor managed to lethally wound the Mad Titan with the Stormbreaker despite taking on the full force of the Infinity Gauntlet.
2) Captain Marvel
She holds her own with Thanos in hand-to-hand combat for longer than Thor, Iron Man, or Steve Rogers, and takes down his enormous warship single-handedly.
Thor survives the Time Stone of time. While still aging physically, he retains his youthful appearance far longer than humans, barely changed after Thanos used the Time Stone to age by several centuries, and will only grow stronger the older he gets.