¿Who is stronger, Colossus or Quicksilver?

Colossus, also known as Piotr Nikolaievitch Rasputin, is a superhero from Marvel Comics who first appeared in Giant-Size X-Men #1 in 1975. Created by writer Len Wein and artist Dave Cockrum, Colossus is a member of the X-Men and one of the most powerful mutants in the Marvel Universe. Colossus' superpowers and strength are closely tied to his ability to transform his entire body into a form of organic steel. When in his steel form, Colossus gains incredible strength and durability, making him one of the strongest beings in the Marvel Universe. He can withstand powerful physical attacks, and his steel skin makes him impervious to most forms of harm. One unique aspect of Colossus' powers is that he can transform back and forth between his human form and his steel form at will. While in his human form, he retains his normal strength and abilities, but when he transforms into his steel form, he gains incredible power and durability. Colossus' origins are closely tied to those of the X-Men. He was recruited by Professor Xavier to join the team of mutants who were trained to use their powers for good. Despite his gentle nature, Colossus quickly became known for his incredible strength and courage, using his powers to fight against various villains and threats. Throughout his career, Colossus has had many memorable moments, including his romance with fellow X-Man Kitty Pryde, his leadership role in various X-Men teams, and his pivotal role in many Marvel Universe events. Overall, Colossus' superpowers and strength make him one of the most iconic mutants in the Marvel Universe. His ability to transform into organic steel gives him incredible power and durability, making him a formidable opponent for even the strongest villains.

Quicksilver, also known as Pietro Maximoff, is a Marvel Comics superhero who possesses the ability to move at superhuman speeds. He was created by Stan Lee and Jack Kirby and first appeared in X-Men #4 in 1964. Quicksilver's powers are a result of his mutated physiology, which allows him to move at incredible speeds, run across water and up walls, and even create afterimages of himself. His reflexes and reaction times are also enhanced, making him incredibly difficult to hit in combat. In addition to his speed, Quicksilver is also a skilled hand-to-hand combatant, having been trained by his father, Magneto, in martial arts and strategy. Quicksilver's history in the Marvel Universe is complex and has evolved over time. He and his twin sister, Scarlet Witch, were initially introduced as members of the Brotherhood of Evil Mutants, led by their father Magneto. However, they later defected and joined the Avengers, where they became important members of the team. Quicksilver has also had numerous solo adventures, where he has faced off against some of the most dangerous villains in the Marvel Universe. His speed and agility have allowed him to take on opponents much stronger than himself, and his tactical intelligence has allowed him to outmaneuver even the most cunning of foes. In addition to his comic book appearances, Quicksilver has also appeared in multiple adaptations in other media, including the X-Men and Avengers films. He remains a beloved and iconic character in the Marvel Universe, known for his lightning-fast speed and unwavering determination.