¿Who is stronger, Zamasu or Thor?

Zamasu is a significant antagonist in the "Dragon Ball Super" series, known for his complex ideology and formidable abilities. Originally a Kai apprentice from Universe 10, Zamasu becomes disillusioned with mortals, leading him to enact the "Zero Mortals Plan" to eradicate all mortal life. He collaborates with his future counterpart, resulting in the creation of Goku Black by swapping bodies with Goku. Their fusion through the Potara earrings forms Fused Zamasu, a being of immense power but with a deteriorating body due to the fusion of mortal and immortal entities. Zamasu's abilities include energy projection, flight, and a unique form of immortality. His character explores themes of justice, morality, and the consequences of unchecked power within the "Dragon Ball" universe.

Thor is a comic book character created by Marvel Comics and is known as one of the most powerful and beloved heroes of the publisher. He is the god of thunder and lightning and is the protector of Asgard, the realm of the Norse gods. Thor has a number of supernatural powers, including the ability to manipulate thunder and lightning, superhuman strength, immortality and the ability to fly. He is also the owner of the magical hammer Mjolnir, which gives him a number of additional supernatural abilities.