¿Who is stronger, Winter Soldier or Power Girl?

Winter Soldier, also known as James Buchanan "Bucky" Barnes, is a Marvel Comics superhero who was first introduced in Captain America #1 in 1941. He was created by Joe Simon and Jack Kirby. Bucky was originally portrayed as Captain America's teenage sidekick, serving as his partner in the fight against the Axis Powers during World War II. However, in a tragic turn of events, Bucky was presumed dead after a mission gone wrong, leading to Captain America being frozen in ice and preserved for several decades. Decades later, Bucky was revealed to have survived the mission and had been brainwashed by the Soviet Union to become a deadly assassin known as the Winter Soldier. He possesses superhuman strength, agility, and endurance, as well as extensive combat training and knowledge of espionage. The Winter Soldier's most notable power is his bionic left arm, which is capable of crushing metal and firing energy blasts. The arm is also equipped with various gadgets and weapons, including a retractable knife and a grappling hook. Despite being brainwashed for years, Bucky eventually regained his memories and went on to become a hero in his own right, even taking up the mantle of Captain America for a time. Throughout his history, the Winter Soldier has faced off against numerous foes, including Captain America himself, who was initially suspicious of Bucky's motives after he resurfaced as the Winter Soldier. However, Bucky has proven himself time and time again as a valuable ally and hero, using his formidable skills and determination to protect the world from threats both foreign and domestic. The Winter Soldier has also made multiple appearances in the Marvel Cinematic Universe, portrayed by actor Sebastian Stan. He remains a popular and iconic character in the Marvel Universe, known for his strength, cunning, and unwavering loyalty to those he considers family.

Power Girl, also known as Kara Zor-L, is a powerful superhero from the DC Universe. She is a member of the Justice Society of America and is one of the most formidable and respected heroes in the DC Universe. Power Girl's story begins on the planet Krypton, where she was born as the cousin of Superman. Like Superman, Power Girl possesses a number of superhuman abilities, including strength, speed, agility, durability, and the ability to fly. Unlike Superman, however, Power Girl's powers are not derived from the sun, but rather from a natural genetic mutation. As a result, her powers are not limited by the presence of a yellow sun, and she is able to use her powers to their full extent at all times. In addition to her physical powers, Power Girl also possesses a number of mental abilities, including telepathy and telekinesis. She is also able to manipulate energy and matter, allowing her to create powerful energy blasts and even reshape the environment around her. Throughout her long and storied career, Power Girl has faced many challenges and fought against a wide range of villains, including Lex Luthor, Brainiac, and the Joker. Despite these challenges, she has always emerged victorious, making her one of the most respected and admired heroes in the DC Universe.