¿Who is stronger, Bills or Onslaught?

Beerus, also known as Bills in some translations, is a pivotal character in the "Dragon Ball" series, introduced as the God of Destruction for Universe 7. Resembling a purple, anthropomorphic feline, Beerus maintains cosmic balance by destroying planets, a role that contrasts with the Supreme Kais, who are responsible for creation. His first appearance is in the film "Dragon Ball Z: Battle of Gods," where he seeks the Super Saiyan God to challenge his strength, leading to a monumental battle with Goku. Despite his formidable power and often capricious nature, Beerus develops a complex relationship with Earth's heroes, oscillating between adversary and ally. His abilities include immense strength, speed, energy projection, and a technique called "Hakai," which allows him to erase entities from existence. Beerus's character adds depth to the series by exploring themes of divinity, power, and the delicate balance between creation and destruction.

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.