Who Can Defeat Surtur

Can Hela defeat Surtur?

So Thor is fighting Surtur at only a fraction of his true power, while Hela is fighting him after he’s been reunited with his Eternal Flame, and is at his full power. Before Odin trapped him, he had been powerful enough to destroy all of Asgard by himself if he wanted, so once he’s restored, Hela is no match for him.

Can Surtur beat Thanos?

With the Infinity Gauntlet, it’s not a question, but on his own, there’s no way Thanos could have gone up against Surtur when empowered by the Eternal Flame.