In the comics, Scarlet Witch and Thanos are more or less on the same level when it comes to the destructive potential of their powers. However, in the MCU, Scarlet Witch is far more powerful.
Wanda Mastered Her Powers After Clashing with Thanos
Before Multiverse of Madness, she was strong but not that powerful. That's why the Infinity Stones-powered Thanos could withstand Wanda's attack in Wakanda and then defeat her and destroy Vision.
In the main Marvel Comics continuity, despite all her power, the Scarlet Witch could not stand next to god-like forces such as the Phoenix Force, Galactus, and the Living Tribunal.
As the only Avenger that proved capable of single-handedly defeating him, Wanda ranks easily as one of the most powerful Avengers.
When it comes to the Avengers who can beat Scarlet Witch, Doctor Strange is undoubtedly one of the most potent contenders. His ability to manipulate the fabric of reality and his mastery of the mystic arts make him a formidable adversary.
Thor wins in a fight against Scarlet Witch almost every time. One can't neglect Wanda's incredible powers, especially her reality-warping and telepathic abilities. However, she still has the durability of a regular human being.
Wanda was still a formidable adversary, capable of tipping the scales in favor of Ultron (James Spader) or the Avengers, depending on who she was helping. Still, without her Chaos Magic from Marvel Comics, Wanda was not more powerful than Thor or Hulk.
Scarlet Witch's most important aspect in this fight is that she has the ability to defeat Superman. He is not impervious to magic, so her hits will damage him.
Unlike Doctor Strange, Wanda was born with her chaos magic capabilities, therefore having her whole life to hone her skills. Wanda's Chaos Magic received a significant power boost from the Mind Stone, granting Scarlet Witch the aptitude for spontaneous creation and enough energy to take on Thanos single-handedly.
The Verdict: Scarlet Witch Is Stronger Than Captain Marvel
That said, Wanda has an edge due to Chaos Magic and her reality-warping abilities. Her telekinesis alone could nearly kill Thanos faster than Carol's punches. Now, as the Scarlet Witch, she doesn't even have to move objects with her mind to get what she wants.
While Odin is the god with the power originally. Odin knows magic just as well as Wanda does, shown through his enchantments, and some of his feats. Odin wins, unless he falls into the odinsleep.
Marvel Proves Scarlet Witch Can Be Beaten By Spider-Man In Avengers #22. Scarlet Witch is known as the strongest Marvel hero and Avenger today. The extent of her powers cannot be measured or equaled, but she is not exempted from having no weakness.
Her body has physical limitations and is only as durable as a human body can be. Her use of magic also drains her physically and is quite exhausting for her as is seen during Multiverse of Madness. She is vulnerable to all attacks and bullets and was easily injured by Proxima Midnight during the attack on Vision.
Wanda can manipulate practically anything - energy and reality being her main two focuses - and using a combination of her abilities is why she was able to take on Thanos singlehandedly. She caught Thanos in a force field, of sorts, and began crushing him and his seemingly impenetrable armor.
Scarlet Witch's Powers Can Easily Defeat the Hulk (Under One Condition) Scarlet Witch has proved her magic can stop the Hulk, but the specific spell she needs to use has one condition to be effective. Avengers' Scarlet Witch has already proved she can defeat the Hulk, but only under a specific circumstance.
1 – Scarlet Witch (Wanda Maximoff)
Even before she mastered her powers, Maximoff put up a decent fight against Thanos in Infinity War and in Endgame. Maximoff is also one of many characters on this list who can defeat Thanos even if the Mad Titan is wielding the Infinity Gauntlet.
Thor. Thor, the god of Thunder, was undoubtedly the most powerful member of the original Avengers. His power continues to grow in the Marvel Cinematic Universe.
Without question, the One Above All is the most powerful character in all of Marvel Comics. How do we know this? Well, the One Above All is literally God. The creator of every single being in existence, the One Above All is the ultimate force for good in all the multiverses.
1. Scarlet Witch. Scarlet Witch's current standing in the Marvel Cinematic Universe is a topic of debate. While her status as an Avenger is uncertain due to her recent villainous turn in Doctor Strange in the Multiverse of Madness, it's clear that she remains the most powerful among Earth's Mightiest Heroes.
By exploiting Shazam's vulnerabilities and disrupting his powers through her reality-warping abilities, Scarlet Witch could effectively neutralize Shazam's strength and defeat him in battle.
Without any superpowers, Batman is at a massive disadvantage as he would have to rely on his combat prowess to best Wanda. However, he would have a hard time getting close before she shreds through his armor with a massive blast of energy.
If you're talking about MCU Wanda, then Goku wins easily. This Wanda can't scratch Goku because he is far above her in terms of raw power. And she is too slow to somehow react to Goku's attacks, because he is many thousands of times faster than light, and her reaction does not exceed the supersonic level.
Thor could beat Wanda in an arm wrestling contest, but Thor is still susceptible to Wanda's mind powers. And we've seen that before, in Avengers: Age of Ultron. In the movie, Thor literally brags about how mighty he is, only to find himself stepping into Wanda's illusion and getting psyched out from it.
However, Odin and Mjolnir may still have the last laugh since, by negating the spell, the Scarlet Witch could potentially remove the hammer's ability to grant its wielders Thor's power. So, while she could technically lift Mjolnir, Wanda might just end up turning Thor's mighty hammer into an extra-heavy paperweight!
Mjolnir could be destroyed by someone who was worthy (Hela) so I assume that technically Thor, Odin, Vision or Cap could order the hammer to destroy itself. Scarlet Witch on the other hand, destroy a damn INFINITY STONE.