¿Who is stronger, Watcher or Supergirl?

The Watcher is a powerful and enigmatic character from the Marvel Universe, first appearing in the Marvel Comics series "The Fantastic Four" in 1963. He is a member of an ancient and advanced alien race known as the Watchers, who are sworn to observe and record the events of the universe, but not to interfere. The Watcher's story begins on the planet Uranus, where he was born as the son of a Watcher named Zoma and a mortal woman named Kymera. From a young age, the Watcher was trained in the ways of his people, and he quickly rose through the ranks to become one of the most respected and influential members of his race. As a Watcher, the character possesses a number of superhuman abilities, including strength, speed, agility, and durability. He also has access to advanced technology, including a number of powerful weapons and gadgets. Despite his powerful abilities, the Watcher is bound by his oath of non-interference, and he is not allowed to use his powers to directly interfere in the affairs of other beings. However, he has been known to bend or even break this oath on occasion, when he believes that it is necessary to prevent great harm or destruction. Throughout his long and storied career, the Watcher has observed and recorded countless events in the Marvel Universe, including the rise and fall of civilizations, the births and deaths of heroes and villains, and the struggles of ordinary people. Despite his seemingly passive role, the Watcher has had a profound impact on the Marvel Universe, and he is respected and feared by many of its greatest characters.

Supergirl is a powerful superheroine hailing from the planet Krypton. She is the cousin of Superman and shares many of his superhuman abilities, including super strength, super speed, and the ability to fly. Supergirl's real name is Kara Zor-El, and she was sent to Earth as a teenager by her parents just before the destruction of Krypton. Like Superman, Kara was raised by adoptive human parents and learned to hide her powers for fear of being discovered. However, she eventually decided to embrace her true identity and use her powers for good, becoming the superheroine known as Supergirl. In addition to her physical abilities, Supergirl also possesses a range of other powers, including heat vision, super breath, and enhanced senses. She is also highly intelligent and skilled in a variety of fields, including science and technology. As Supergirl, Kara fights to protect Earth and its inhabitants from a variety of threats, including supervillains, alien invaders, and natural disasters. She is a member of the Justice League and often teams up with her cousin Superman and other superheroes to defeat their enemies and save the world. Despite her incredible strength and abilities, Supergirl is still a young woman learning to navigate the complexities of life and find her place in the world. She struggles with her identity as both a superhero and a human being, and strives to balance her duties as a hero with her personal life and relationships. Overall, Supergirl is a strong, courageous, and compassionate hero who uses her powers to make a positive difference in the world.