¿Who is stronger, Iron Man or Groot?

Iron Man, also known as Tony Stark, is a powerful superhero from the Marvel Universe, first appearing in the Marvel Comics series "Tales of Suspense" in 1963. He is a brilliant inventor and businessman, and is one of the most respected and admired heroes in the Marvel Universe. Iron Man's story begins with Tony Stark, the son of Howard Stark, a brilliant inventor and scientist. After his father's death, Tony inherits his father's company, Stark Industries, and becomes one of the most successful and influential businessmen in the world. However, Tony's life takes a turn when he is captured by terrorists and forced to build a weapon for them. To escape, he builds a suit of armor powered by an arc reactor, and uses it to defeat his captors and escape. As Iron Man, Tony has access to a wide range of advanced technology and weaponry, including his signature suit of armor. The armor is powered by an arc reactor, and is equipped with a variety of powerful weapons, such as repulsor blasts and missiles. In addition to his physical powers, Iron Man is also a brilliant inventor and strategist, and has used his intelligence and resourcefulness to defeat many of the Marvel Universe's greatest villains, including the Mandarin, Whiplash, and the Ghost. Throughout his long and storied career, Iron Man has become one of the most respected and admired heroes in the Marvel Universe, and is a member of the Avengers and the Defense Advanced Research Projects Agency (DARPA).

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.