¿Who is stronger, Groot or Gohan?

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.

Gohan, the firstborn son of Goku and Chi-Chi, is a central figure in the "Dragon Ball" series. Introduced during the "Saiyan Saga," his latent potential becomes evident when he confronts Raditz to protect his father. Trained initially by Piccolo, Gohan evolves from a timid child into a formidable warrior. His pivotal moment arises during the "Cell Saga," where he attains the Super Saiyan 2 transformation, defeating Cell and showcasing his immense power. Despite his combat prowess, Gohan aspires to be a scholar, balancing his academic pursuits with his responsibilities as a protector of Earth. In the "Majin Buu Saga," he adopts the Great Saiyaman persona to safeguard his identity while fighting crime. Later, he marries Videl, and they have a daughter named Pan. Throughout the series, Gohan's journey reflects his struggle to harmonize his inherent strength with his personal aspirations.