¿Who is stronger, Jean Grey or Groot?

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.

Groot is a character in the Marvel Cinematic Universe (MFCU) who is also part of the Guardians of the Galaxy. Groot is an extraterrestrial being who belongs to the Flora colossus species, a race of arboreal humanoids capable of regenerating and controlling their own plant bodies. In the UCM films, Groot is portrayed as loyal and brave, yet innocent and sometimes childlike in nature. Groot has a very distinctive personality and his vocabulary is limited to the phrase "I am Groot", although other characters seem to be able to understand his meaning based on context and intonation. Groot possesses superhuman strength and stamina thanks to his wooden body, as well as the ability to regenerate and grow his limbs at will. He can also throw sharp spines and control the vegetation around him. Throughout the UCM films, Groot plays an important role in the fight against the forces of evil, even sacrificing himself to save his friends on one occasion. After his sacrifice, a new Groot is born from a branch, meaning the character is essentially immortal.