With Reed Richards coming soon in Fantastic Four, the brainpower in the MCU rivals that of the comics, and dwarfs what the movies once held with Tony Stark as the former top of the food chain as the smartest MarvelThe Marvel Universe is a fictional shared universe where the stories in most American comic book titles and other media published by Marvel Comics take place.https://en.wikipedia.org › wiki › Marvel_Universe
Vision. Vision (Paul Bettany) is easily one of the smartest characters in the MCU for the simple reason that he was built to be one of the smartest beings in the universe.
Vision was meant to be the smartest and certainly the most righteous Avenger. He was even able to wield Thor's hammer in "Age of Ultron." But in actual battle scenes, he didn't prove himself very effective. He was absolutely useless in "Infinity War" and managed to survive only with Wanda's help.
Tony Stark IQ is believed to be 270, indicating that he is a super genius. Only 0.1 percent of the population has a score close to that. Tony Stark IQ is comparable to Leonardo da Vinci's.
Super-Genius Intelligence: Tony is a phenomenal scientific genius and inventor with an IQ of 186.
Joker IQ is estimated to be around 160 IQ, which is not really surprising. Meanwhile Batman's IQ is around 192. The Joker is, in fact, more twisted than intelligent. Joker has chosen to use his intelligence in a different way than his archenemy Batman, who uses it to strengthen his arsenal and improve Gotham.
Apart from his physical abilities, Peter is an intellectually-gifted scientific teen genius and has a prodigious aptitude in the physical sciences, with a high IQ level of around 250.
God (One Above All)
The One Above All is the ultimate source of life and creation and the architect/creator of the Multiverse and everything that exists. The One Above All has stated that its "only weapon is love", which was further stated by the Watcher.
Batman is universally hailed as the smartest man in D.C. Comics, with Lex Luthor his only real competition. Iron Man, by contrast, is at least the fifth or sixth smartest character in the Marvel universe, with Richards, Victor Von Doom, Bruce Banner and Hank Pym all believed to be more intelligent.
Lunella Lafayette's primary gift is her advanced intelligence. She is dubbed the "smartest person in the whole world" by Amadeus Cho, implying that she is more intelligent than other geniuses in the Marvel Universe such as Bruce Banner, Tony Stark, Reed Richards, Victor Von Doom, and Cho himself.
1) Scarlet Witch
Even before Wanda Maximoff accessed her full powers as the Scarlet Witch in the finale of WandaVision and then entered her villain era in Doctor Strange in the Multiverse of Madness, she was the only Avenger capable of holding her own with Thanos.
With that in mind, one character who is smarter than Tony Stark is Samuel Sterns, AKA the Leader. A former janitor from Boise, Idaho, Sterns was infected by gamma radiation and consequently transformed into a highly intelligent creature known as the Leader.
There is no doubt that Stark is a talented engineer, but when it comes to other sciences, such as biology, chemistry, medicine, and nuclear physics, there's no denying that Banner is the most intelligent of the two.
Tony Stark has made his mark in the Marvel Cinematic Universe by being the smartest character in the franchise, a fact that he has repeatedly proven and reminded everyone in each movie he's appeared in.
But hey, with all due respect to the Dark Knight, 'Batman's Theory of Relativity' doesn't pack quite the same punch.” Factinate backs this trivia by adding, “Bruce Wayne has an IQ of 192, beating out both Stephen Hawking (160) and Albert Einstein (160).
According to the Scientist Supreme, Peter has an IQ of over 250.
-Intelligence:
T'Challa is stated to be the 8th smartest man in the world. He considers Reed Richards to be one of the only people that can keep up with him and creates shadow physics. Shows how he is at least as smart as Tony Stark after beating him when they both had prep time for the fight.
Genius Level Intellect: Batman is noted as having an I.Q. of 1045.
She was a highly-skilled psychiatrist during her time working at Arkham Asylum, having been trained in the field of psychoanalysis, and is stated to have a genius-level IQ.
Thanos is known for being superlatively powerful, but he's also as intelligent as they come. Thanos was educated on Titan among his fellow Eternals and learned many secrets of the universe in his travels. Iron Man is intelligent, but Thanos is smarter than Iron Man could ever be.
Albert Einstein likely never took an IQ test but is estimated to have a 160 IQ—but even that can't stand up to these masterminds.