¿Who is stronger, Kang or Jean Grey?

Kang the Conqueror is one of the most powerful and dangerous villains in the Marvel Universe. Throughout his history in the comics, he has travelled through time and conquered countless worlds and realities. In the Marvel Cinematic Universe, Kang was first introduced in the Disney+ series "Loki", where it was revealed that he is an immortal being who has ruled different timelines for centuries. Kang's superpowers are the result of his advanced technology and superhuman intelligence. He has invented devices that allow him to travel through time, control reality and alter history at will. In addition, Kang is an expert in military strategy and has superhuman strength and physical endurance. In the Marvel Cinematic Universe, Kang is played by actor Jonathan Majors, and is expected to play a major role in future films and television series. As one of Marvel's most powerful villains, Kang poses an unrivalled threat to the heroes of the Marvel Universe and promises to be a formidable adversary in the upcoming adventures of the Marvel Cinematic Universe.

Jean Grey is a comic book character created by Marvel Comics and is known to be one of the publisher's most powerful and beloved heroes. She is a mutant who has developed the ability to control and manipulate telepathy and telekinesis. Jean Grey was first introduced in the comic book "X-Men", where it was revealed that she had been one of the founding members of the team of mutants led by Professor X. Although she initially acted as a hero, Jean Grey faced many obstacles and ethical dilemmas throughout her career and had to make difficult decisions to protect humanity.