¿Who is stronger, Onslaught or Gogeta?

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.

Gogeta is a prominent fusion character in the "Dragon Ball" series, resulting from the union of Goku and Vegeta through the Fusion Dance. This fusion combines the strengths and abilities of both warriors, creating a formidable fighter.

Gogeta's debut occurs in the 1995 film "Dragon Ball Z: Fusion Reborn," where he confronts the villain Janemba. In this appearance, he showcases the Super Saiyan form. Later, in "Dragon Ball GT," Gogeta achieves the Super Saiyan 4 transformation during the battle against Omega Shenron, displaying immense power and a confident demeanor.

In "Dragon Ball Super: Broly," Gogeta returns, this time attaining the Super Saiyan Blue form to combat the formidable Saiyan, Broly. This portrayal highlights his strategic prowess and combat skills, solidifying his status as one of the most powerful characters in the series.

Gogeta's techniques include the "Big Bang Kamehameha," a combination of Goku's Kamehameha and Vegeta's Big Bang Attack, and the "Stardust Breaker," an energy attack designed to purify evil. His fusion, achieved through the Fusion Dance, is time-limited, typically lasting 30 minutes under normal conditions.