The Sharingan is the Kekkei Genkai of the Uchiha Clan and one of the Three Great Dojutsu in the Naruto world. Said to hold the powers to see through ninjutsu, genjutsu, and taijutsu, and even copy them, this eye is one of the most fearsome abilities in the story.
Due to a few Uchiha clan members being seen in the series, however, only a handful of characters can be called excellent users of this eye. Most, on the other hand, were fairly average. Without further ado, here are the five best Sharingan users in Naruto and five others who were bad at it.
10 Best: Itachi Uchiha
Itachi Uchiha was the son of Fugaku, the leader of the Uchiha clan in Naruto. Born as a genius, his skills with the Sharingan were known to be immense. At a very young age, Itachi was known to be stronger than most Jonin in the village.
He managed to awaken the Mangekyo Sharingan quite early as well and mastered its powers to the fullest. Itachi was definitely one of the best Sharingan users in the series.
9 Worst: Danzo Shimura
Danzo was the leader of Konohagakure's Root ANBU division and a hateful villain who eventually fell at the hands of Sasuke. After the Uchiha clan massacre, Danzo implanted his body with several Sharingan, along with stealing Shisui's Mangekyo Sharingan.
However, due to him not being an Uchiha, Danzo was not as good a user of the eye as the others. Despite having access to some of the most overpowered abilities, such as Izanagi, Danzo simply wasted it and was easily one of the worst Sharingan users ever.
8 Best: Madara Uchiha
Madara was a legendary Uchiha figure from the Warring States, known to be the rival to Hashirama Senju, the First Hokage of Konoha. Being Indra's reincarnate, Madara was especially talented, even among the Uchiha.
He mastered his Mangekyo Sharingan at quite an early age and went on to awaken the Eternal Mangekyo Sharingan as well.
7 Worst: Sarada Uchiha
Sarada Uchiha is the daughter of Sasuke, who she inherited the Sharingan from. Although her skill with this eye is decent, it isn't anywhere near that of Sasuke or Itachi at her age.
That's not to say Sarada is weak or that she can't improve. In the future, she'll likely be among the best users of this eye. However, as a Genin, Sarada is easily among the weakest Sharingan users.
6 Best: Obito
Unlike most known Uchiha clan members, Obito wasn't born a prodigy. He awakened his Sharingan quite late, however with time, he became an excellent user of this eye.
Thanks to his Mangekyo Sharingan ability, known as Kamui, Obito was almost invincible in battle. Furthermore, his skills with Genjutsu were so advanced that he managed to put a perfect Jinchūriki such as Yagura in an illusion, which should've been impossible otherwise.
5 Worst: Tajima Uchiha
Tajima Uchiha was the leader of the Uchiha clan during the Warring States era and the father of Madara Uchiha. He was known to have a fully matured Sharingan with which he could match Butsuma Senju in combat.
Tajima, however, didn't have anything special up his sleeve and was much weaker than his sons. As such, he's among the weakest Sharingan users seen in Naruto.
4 Best: Sasuke
Sasuke Uchiha is one of the protagonists of the Naruto series. Being the only survivor of the Uchiha clan massacre carried out by Itachi, Sasuke vowed to get stronger than his brother, a goal that he eventually met.
Like Madara Uchiha, Sasuke is the reincarnation of Indra as well, meaning he was blessed with immense talent. By the end of the series, Sasuke is easily among the strongest Uchiha to ever exist.
3 Worst: Zetsu
Zetsu gained access to the powers of the Sharingan and the Mangekyo Sharingan during the Fourth Great Ninja War by taking control of Obito's body.
Although Zetsu was in full control of Obito, he couldn't perform the jutsu as efficiently as Obito did, evident from the fact that Obito was eventually able to show resistance. Zetsu, despite having the powers to control others, wasn't able to demonstrate any proper skill with the Sharingan.
2 Best: Indra Otsutsuki
Indra was the elder son of Hagoromo Otsutsuki, the Sage of Six Paths. Having inherited the visual prowess of his father, Indra was born with immense powers of the Sharingan.
Over the years, his skill with the eyes was great enough to make even the strongest of characters look weak in front of him. It goes without saying that Indra was one of the absolute best users of the Sharingan.
1 Worst: Itachi's Crow
Itachi Uchiha entrusted his crow with Shusui Uchiha's eye sometime after he committed suicide. Although a summon, Itachi's crow wasn't all that powerful when compared to the likes of Gamabunta or Manda.
Due to its low chakra levels, it could only perform Kotoamatsukami once in years, rendering the eye useless afterward. It's quite apparent that Itachi's crow was one of the weakest Sharingan users in Naruto.