The last thing to consider – and what really gives Stormbreaker the edge out of the two – is that Stormbreaker can summon the Bifrost. This means that Thor has the ability to instantaneously travel to virtually anywhere in the Nine Realms while holding the axe. That ability is something he cannot do with Mjolnir.
Both weapons can be summoned by Thor, and will return to his hand after being thrown. Both weapons also enable Thor to fly, and to channel his power to summon lightning. Stormbreaker has the additional power to summon the Bifröst, allowing Thor to teleport anywhere in the Nine Realms.
It practically looks like a propeller, which might be one reason that fans expect Thor cannot fly without his hammer. However, it only helps him fly faster. Mjolnir is a magical weapon, enchanted by the greatest mages of Asgard.
Storm breaker is meant to be the strongest weapon of Asgard and could even summon bifrost, says Eitri. But there is no enchantment or spell on it like it was on Mjolnir. So one doesn't have to be worthy to weild it, just the strength to lift it. Clearly Thanos is capable of lifting it.
During a Vudu Viewing Party for Avengers: Infinity War, co-directors Anthony and Joe Russo revealed a key difference between Thor's hammer Mjolnir and his new ax Stormbreaker: the latter doesn't require worthiness. That's why Groot was able to lift the ax, not because he was worthy but because he didn't need to be.
Why does Thor like Mjolnir more than Stormbreaker?
It may be weaker than Stormbreaker in the Marvel Cinematic Universe's lore, but Mjolnir carries the bigger legacy since it holds a deeper meaning to Thor and anyone was worthy enough to wield its power.
By most accounts, Superman seemingly outclasses Thor in terms of raw strength, especially in earlier versions of the DC Universe. He's pulled planets, punched people into orbit, and performed all sorts of wild feats of strength.
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.
Only Thor can produce lightning without Mjolnir. But the point of carrying Mjolnir means whoever carried it are worthy to be the king of Asgard and gets the power of the God of Thunder. But if someone wields the hammer and if Thor is still worthy of wielding the hammer, than the 'someone' couldnt produce lightning.
Unlike Mjølnir, however, the weapon is not enchanted to prevent those deemed "unworthy" from holding it, making anybody with sufficient strength capable of using the weapon.
How Can Captain America Lift Thor's Hammer? Simple: Steve Rogers is worthy. The inscription on Mjolnir reads “Whosoever holds this hammer, if they be worthy, shall possess the power of Thor.” It doesn't matter how strong you are, if you aren't worthy, you can't lift Thor's hammer, no matter how hard you try.
Many viewers have pointed out that Thanos was able to lift Stormbreaker without a problem, but this is because the ax isn't enchanted as Mjolnir is. Others believe Thanos lifted Mjolnir (although briefly) and have even argued that he would be worthy of doing so.
In Thor: Love and Thunder's ending, Love carried it into battle alongside Thor, who was once again wielding Mjolnir. The movie doesn't explain Thor's motivations for giving up Stormbreaker, but it makes sense that Chris Hemsworth simply wanted Love to have a powerful weapon to aid her in battle.
Thor had the element of surprise and a weapon capable of overpowering even the Infinity Gauntlet. Stormbreaker powered through the gauntlet's energy beam but left Thanos alive long enough to succeed, making his victory in Avengers: Infinity War all the more devastating.
Stormbreaker did not open the gate to eternity. It was manipulated to activate the bifrost , which was then used to open the gateway by directing the energy against the seal: The weapon may have displayed some levels of “feelings” against its owner, but Gorr has the powers of the Necrosword.
Bill's been without Stormbreaker for a while now, as, in last year's Thor #3, Thor destroyed the powerful hammer after the pair got into a fight over his decision to join Galactus in a fight against the Black Winter.
Originally Answered: Why couldn't Thanos stop Stormbreaker hitting his chest with a completed Infinity Gauntlet? I think, quite simply, he underestimated both Stormbreaker and this more godly Thor. He had the power to simply snuff Thor from existence or fire a beam that nothing in the universe could stop.
Can Thor beat Superman with Stormbreaker and Mjolnir?
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.
Why does Thor use Mjolnir instead of Stormbreaker?
Like Stormbreaker, Mjolnir also allows Thor to wield thunder and lightning; however, it's not capable of summoning the Bifrost. The magic hammer did develop a power Stormbreaker couldn't, though, and it's able to detach its broken pieces to attack multiple enemies at once, before coming together again.
