Batman occupies the top spot on the list of the smartest superheroes, like always. Batman didn't stop with his pursuit of knowledge, despite having an IQ of 192. His grasp is over a multitude of subjects such as Physics, Engineering, Mathematics, applied sciences. They don't call him Polymath for anything. Read more
Superman admitted that there's another DC Comics hero that's actually smarter than Batman - even if the hero won't say he is. Mr. Terrific is absolutely smarter than Batman. Batman is without question one of the smartest heroes in all of comics.
2 Batman. ... Batman's experiences as a detective and as a member of the Justice League have only strengthened his knowledge of the scientific world, easily making him one of the planet's smartest heroes.
To many fans, Batman is the smartest superhero of all time. His brains are matched only by Superman's brawn, and together, they're the World's Finest.
Batman represents the zenith of human will power, intelligence, and strength. This is his Golden Age standard. As for why he is (perceived to be) the smartest character in DC, is because as one of their Main/Primary Characters, he is also their Primary Genius/Smart-Man.
Scientific Aptitude and Knowledge
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.
Jokers's IQ is estimated to be around 350 (which is insane even in the real world), while Batman's is around 290. Additionally, the joker has been known to trick Batman numerous times causing him to even doubt himself in some cases.
TLDR Iron Man is more “intelligent”, Batman is more competent. In terms of out right raw intellect, comparing DC people to marvel is just totally unfair pretty much everybody in Marvel has a doctorate, and can invent technology beyond our comprehension in under a day.
In the DC Universe, Batman is regarded as “The World's greatest Detective”. He has an IQ of 192. He can solve Riddler's riddles. (In the Arkham games, Riddler claims to have an IQ of over 150) At a young age, he mastered speed reading and total memory recall.
Thanos' IQ is over 9000.
In the DC Universe under most canon and under most continuities, the smartest man on the DC Earth is Lex Luthor.
However if we could test alien knowledge then he would have an IQ of about 160 I think.
A trivia published in BuzzFeed states, “Batman's stated IQ is an unbelievable 192, several notches above the famed theoretical physicist (Albert Einstein), who was estimated to have an IQ between 160 and 180.
While L is a great detective, Batman's track record in actually settling cases is superior in every way. Ultimately, Batman is the better detective.
They both are extreamly smart in their own field. Barbra Gordon is like a hacker who works on the bench and provides the support and Intel for the Bat-family. Bruce Wayne does all the field work and is considered to be the greatest detective of the DC universe.
Controversial, we know, but in a fight between these two characters in their truest form, Batman wins, therefore making him more powerful. ... Bruce Wayne is far more knowledgeable than Clark Kent, meaning Batman would know every last one of Superman's weaknesses before ever choosing to step into battle.
The Sentry is similar to Superman but has mental problems and is also his greatest enemy, the Void. The Blue Marvel is also like Superman, but without weaknesses.
Of all the characters in DC, Wally West is the fastest superhero they have. And why? Because, while others use the Speed Force, Wally has become one with it. To put it into perspective, Wally West is so fast that he has covered over 7,000 miles in just under 7 seconds.
Considering the question at hand, in the comics batman would (and has) easily defeated green arrow. Batmans physical abilities and genius level intellect saw his beating arrow to within an inch of his life.
Originally Answered: Could Batman beat the Avengers? No, he cannot. While Batman is incredibly capable, so are many other superheroes from both DC and Marvel, and to say that he can defeat an entire team filled with such characters mostly stems from a fanboy's perspective.
Fantastic is the only one the Watcher ever bent the rules for. He also has a greater knowledge of Galactus and the Sliver Surfer than anyone else. Batman is the smartest. He is more resourceful than the others with his level 12 intellect.
The IQ level of captain america is zero because we can not measure his IQ level as he is just a character driven by a writer according to his imagination.
The Joker is not as intelligent as Batman. Batman has proven himself the smarter of the two on multiple occasions, always figuring out the Joker's gruesome puzzles and often knowing the Joker's motivations better than the Clown himself. That being said, the Joker is obviously intelligent enough to be dangerous.
No. Batman is an extreme personality, that does not make him insane. Far from it. Too often when trying to analyze the rather complicated psyche of Bruce Wayne (as he is in the source material), people look first at the fact that he lurks in a costume and draw conclusions, based on that alone, about his lack of reason.