Which Love and Thunder Weapon Is Better: Stormbreaker or Mjolnir?
These weapons each have lengthy histories that predate the events of Love and Thunder, yet their origin tales are not identical. Although both weapons were created in Nidavellir with the aid of Dwarves and Uru metal, Thor was allowed to work directly on Stormbreaker.
Stormbreaker has a more interesting past than Mjolnir despite being created in 2018. Thor's weapon Stormbreaker was constructed by Dwarf Eitri and Guardian Groot. Thor risked his life by using a star's energy to build Stormbreaker. Stormbreaker gave Thor the strength to withstand the star's blows and was eventually used to kill Thanos.
Even though Thor and Mjolnir have a long-standing friendship, the stakes were much higher when Stormbreaker was created. The genesis story of the axe stands out much more than the origin story of the hammer because Thor wasn't present for the construction of Mjolnir as he was for Stormbreaker.
Mjolnir is older than Stormbreaker; Hela owned it before Odin imprisoned her. Odin enchanted Mjolnir with Thor's powers in 2011 and only a worthy person could lift it. Thor and the hammer have been on numerous adventures since Phase 1, saving lives across the galaxy.
For a while, there didn't seem to be much of a difference between Stormbreaker and Mjolnir's strengths. Love and Thunder have helped to clarify the differences between the two, and they now appear to be very different weapons.
Stormbreaker may summon the Bifrost all by itself. Gorr the God Butcher in Love and Thunder wanted it so he could unlock the gates of Eternity without Hiemdall's help. Stormbreaker is razor-sharp and flat like a hammer. It's double the size of Mjolnir and can control the weather. Eitri told Thor that Stormbreaker was designed to be the most powerful Asgardian weapon.
Mjolnir lets Thor wield thunder and lightning, but not the Bifrost. The magic hammer can detach and attack numerous foes at once, unlike Stormbreaker. Jane's death was postponed when Mjolnir transformed her into the Mighty Thor. Using Mjolnir also killed her, since it drained her life every time she lifted it up.
Overall, however, Stormbreaker appears to once again be superior to Mjolnir. Stormbreaker's abilities are more potent than those of the legendary hammer Mjolnir, making it capable of reaching Eternity, opening the Bifrost, and controlling storms in a same manner.