Sherlock Holmes. He is extremely intelligent, with his remarkable powers of deduction. He can observe the tiniest details and use them to solve the most complex mysteries. His mind is like a well - oiled machine, constantly analyzing and making connections that others miss.
I think it's debatable. Rick has genius-level intelligence in science and technology, but his decision-making and interpersonal skills might not always show the highest level of wisdom.
A character's intelligence in fiction can be measured by their knowledge base. Professor X from the X - Men has extensive knowledge of genetics, mutants, and telepathy. He uses this knowledge to lead the X - Men and protect mutants. Also, adaptability is important. A smart character like Katniss Everdeen in 'The Hunger Games' can quickly adapt to the changing and dangerous situations in the arena, using her wits and survival skills, which also indicates her intelligence.
Reed Richards (Mr. Fantastic) is often considered one of the smartest. His scientific and strategic brilliance help the Fantastic Four overcome many challenges.
It's a matter of perspective. Some might argue there are other characters just as smart or even smarter. But Rick's brilliance in creating and manipulating technology gives him a strong case for being the smartest.
In my opinion, Reed Richards (Mr. Fantastic) from the Fantastic Four is considered one of the smartest. His scientific and intellectual prowess allow him to solve complex problems and invent amazing technologies.
Innovation is another aspect. Tony Stark from the Marvel universe is a great example. He invents amazing technology like the Iron Man suit. His ability to think outside the box and create solutions that no one else has thought of, whether it's for combat or for other scientific purposes, makes him a strong contender for being one of the smartest in fiction. He also has the business acumen to run his company and use its resources for his inventions.
It's hard to say for sure. Different people might have different opinions. Some might think it's Tony Stark from Marvel Comics for his genius-level intellect and technological innovations.