¿Who is stronger, Onslaught or Spider-Man?

Onslaught is a comic book character created by Marvel Comics and is known to be one of the publisher's most powerful and feared villains. He is a cosmic being created by merging the minds of Charles Xavier and Magneto, two of Earth's most powerful mutants. Onslaught has a number of supernatural powers, including the ability to manipulate people's minds and behaviour, superhuman strength and the ability to manipulate magnetism. He is also virtually indestructible, making him a formidable foe for any hero who confronts him.

Spider-Man is one of the most iconic superheroes in the Marvel Universe. Created by Stan Lee and Steve Ditko, Spider-Man made his first appearance in Amazing Fantasy #15 in 1962. Since then, he has become one of the most beloved and popular characters in the franchise. Spider-Man's real name is Peter Parker, a high school student with superhuman abilities. After being bitten by a radioactive spider in a science experiment, Peter developed superhuman strength and agility, as well as the ability to climb walls and throw webs from his wrists. From there, he adopted his alter ego of Spider-Man and began fighting crime in New York. In addition to his superhuman abilities, Spider-Man is known for his wit and sense of humour. He often taunts his enemies in the middle of fights, and his cheerful and friendly personality makes him very popular with fans. In the Marvel Universe, Spider-Man is one of the most important members of the Avengers and has fought alongside many other iconic heroes. He has had some of the most memorable and emotional storylines in Marvel history, including the saga of "The Death of Gwen Stacy" and "Spider-Verse", where he fought alongside other Spider-Men and women from different universes.