¿Who is stronger, Jean Grey or Muten Roshi?

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.

Muten Roshi, also known as the Turtle Hermit or Master Roshi, is a pivotal character in the "Dragon Ball" series. Born in the year 430, he is renowned as the master of the Turtle School and one of Earth's most formidable martial artists. Throughout the series, Roshi has trained key figures such as Goku, Krillin, and Yamcha, imparting iconic techniques like the Kamehameha. Despite his elderly appearance and often humorous demeanor, he possesses exceptional strength and skills, demonstrated in various tournaments and battles. Beyond his role as a mentor, Roshi has been an active member of the Z Fighters, participating in Earth's defense against numerous threats. His longevity and wisdom make him a respected and beloved figure within the "Dragon Ball" universe.