There was a controversy on what a "genius" ninja would be defined as.
theories:
Originally posted by: Dezalanel
I love how people talk about how Sasuke is such a genius. What has Sasuke ever come up with besides the Lion Combo?(Which he stole the beginning from Rock Lee). His moves are some basic Katon moves(Which every Uchiha knew) that never work, Chidori which can be dodged pretty easily and was taught to him by Kakashi, and Curse Seal which takes tons of chakra and was GIVEN to him by Orochimaru. Now Neji is the real genius, he figured out two head house Hyuuga moves. He was not taught them he did it by himself. Pretty damn impressive. This is such an easy match, all Neji needs is one solid Jyuuken hit and Sasuke is done for, Sasuke does not have two chakras like Naruto. Even if Sasuke goes CS2 all Neji really has to do is dodge him for a while with is Byakugen and if things get in a real jam just Kaiten to protect himself.i said "the ability to be adequate in everything aspect of being a ninja and work them proficiently (maybe even have a bloodline)."Originally posted by: XanBcoo
Also, both Neji and Sasuke have been called "genious" because they are above the skill of their peers.
In the series the only people who have been stated as geniuses (I think) are Sasuke, Neji, Kakashi, and Lee (genius of hard work).