Hela is older than everyone on Asgard and older than Thor. Odin covered up his early days of conquest with his daughter, Hela, who's ambitions outgrew his own and became power-hungry. Another reason why is that Asgardians who probably knew Hela most likely died or wasn't around when she was off conquering with Odin.
There are few people that Hela is not more powerful than. She was very easily able to defeat Thor (Chris Hemsworth), who left her to be destroyed by Surtur along with the entirety of Asgard because he couldn't defeat her himself.
But, in the MCU, Hela is Odin's first born child. She is Thor's sister and Loki's half sister. She is older than both and more powerful (much more powerful) than both.
Modi Thorson was the son of Thor and the goddess of Death, Hela from the Ultimates timeline. The story of his conception and birth begins with the aftermath of an event called Ultimatum, which is also considered to be one of the worst event comics ever.
Hela was born in Jotunheim, the land of the giants. She is the child of Loki (albeit a different incarnation who died during a previous Asgardian Ragnarok) and the giantess Angrboða.
Naturally, the clearest and most obvious reason why Thanos would win in a fight with Hela would be his Infinity Gauntlet. In the Mad Titan's possession, it would be incredibly difficult for Hela to defeat him either in a straight fight, or some other means.
Like Valkyrie, we know Hela, as the elder sister of Thor, is older than his 1500 years. Again, we put her at about 2000, like Valkyrie, though a little bit older too, her presence implies as much.
Theory: Loki Based His Appearance On Odin's Memories Of Hela
When Odin touched baby Loki, he saw Odin's memories and saw his imprisoned daughter Hela, so he took a similar appearance. A different interpretation of the theory says Odin intentionally changed Loki's appearance and made him look like Hela.
However, Thanos is still standing, and he forces Odin to unleash the full might of his power, the Odinforce. In an epic sequence, Thanos keeps advancing toward his foe, withstanding blast after blast of deadly energy. In the end, Odin is too strong, and Thanos is clearly beaten.
Stormbreaker can summon the bifrost and Hela is stronger in Asgard. Thor can teleport her and himself and open her chest killing her, or cut off her limbs ir head. Plus, Stormbreaker is stronger than Mjolnir.
Odin's enchantment on Mjolnir in the beginning of Thor made it so only those worthy could wield its power. The most plausible explanation for Hela being able to hold and destroy Mjolnir is that Odin's death weakened the enchantment and she was too powerful for it.
Unable to kill his own daughter, Odin defeated Hela and imprisoned her using his own power to keep her at bay in another realm for eons. During this respite, Hela attempted to escape imprisonment in Hel and was near successful. Odin dispatched the female warriors known as the Valkyrie to stop her.
Thor realized he was not going to be able to defeat her, and in an interesting turn of events, he ended up restoring Surtur's power by having Loki drop the crown in the Eternal Flame. This unleashed Ragnarök, which was the only way to defeat Hela as Asgard was her power source.
Hint - It's tied to Odin's death. TL;DR Odin's enchantments are what makes Mjolnir nearly unbreakable. When Odin dies his enchantments are lifted, allowing Hela to easily crush the hammer.
While Steve Rogers gets the title of the oldest human avenger, Thor Odinson, as the mighty Asgardian God of Thunder, has a much longer life span than any of his Earth-born friends.
While it is never addressed in-universe, MCU director Joe Russo confirmed Thanos was around 1000 years old in 2012's The Avengers when he first appeared in the MCU. Based on that, Thanos is younger than Thor and Loki, which, if revealed in one of the past two Avengers films, might have proven itself to be distracting.
In Thor: The Dark World, Odin makes it clear that they “are born, they live, they die, just as humans do”, to which Loki replies that “give or take, 5000 years” – so taking that into account, Odin was at least 5000 years old when he died in Ragnarok.
Assuming we're talking DCEU and MCU versions, then Hela wins this. Yes, she's not as fast as Superman and he'll give her quite a thrashing, but nothing Superman does will keep Hela down for long.
While Hercules may have the strength to literally destroy Thor's body, Thor can technically do the exact same thing to Hercules. The Olympian and the Asgardian are evenly matched in terms of both strength and durability.
Odin is basically Thor and all the other Asgardians rolled into one—though he's even wiser, more experienced, and minus one eye. As the default King of Asgard, Odin is easily the most powerful being in his realm.
Helios married Perse, one of the Oceanids, a collection of deities associated with water. Together, the couple brought Perses, Circe, Aeetes, and Pasiphae into being. Circe may be the best-known of Helios's children; a sorceress, she turned Odysseus's men into wild animals in the Odyssey.
Following the destruction of the universe and its eventual restoration, Hela was defeated in battle by Angela, who had passed the three trials required to get the power needed to defeat Hela in her own domain with the aid of an alternate Leah only so she could overthrow Hela, and change the rules of Hel to bring her ...
Valkyrie is an Asgardian. She was part of a legendary force of women warriors that seemingly all perished. When Odin ordered the Valkyrie to drive his daughter Hela, the Goddess of Death, into a prison of Odin's making, she alone survived the assault thanks to another's sacrifice that saved her.
