¿Who is stronger, Bills or Buu?

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.

Majin Buu is a pivotal antagonist in the "Dragon Ball" series, introduced during the "Majin Buu Saga" of "Dragon Ball Z." Created by the dark wizard Bibidi, Buu is an ancient entity with immense power and a malleable, pink physique. Throughout the series, Buu undergoes several transformations, each altering his personality and power levels, including Innocent Buu, Evil Buu, Super Buu, and Kid Buu. His abilities are vast and versatile, encompassing regeneration, absorption, and transmutation, such as turning adversaries into sweets. Despite his initial role as a villain, aspects of Buu's character, particularly in his Innocent form, display a capacity for change and even benevolence. This complexity adds depth to his character, making him one of the most memorable antagonists in the "Dragon Ball" universe.