1.Saber [Fate/stay night]
Her full name is Arturia Pendragon, her creation as a character inspired by the legends of King Arthur. Arturia is the daughter of British King Uther Pendragon and Igraine, a former Duchess of Cornwall. At her nativity, Uther realizes his subjects will never accept a female as a legitimate ruler, and decides to not publicly announce Arturia’s birth or gender. She is entrusted by Merlin to a loyal knight, Sir Ector, who raises her as a surrogate son. When Arturia is fifteen, King Uther dies, and with no known eligible heir to the throne, Britain enters a period of turmoil following the growing threat of invasion by the Saxons. Merlin soon approaches her, explaining that the British people will recognize her as a destined ruler if she withdraws Caliburn, a ceremonial sword embedded in a large slab of stone. However, pulling this sword is symbolic of accepting the hardships of a monarch, and Arturia will be responsible for preserving the welfare of her people. Without hesitation, and despite her gender, she draws Caliburn and shoulders Britain’s mantle of leadership.
2.Erza Scarlet [Fairy Tail]
Erza is the strongest female member of Fairy Tail and one of the only four S-Class wizards of the guild. Thanks to this strength, she had been considered by Makarov to be the next Master, but he said that Erza was too young and strict. Erza is a strong sword wizard whose skills in swordplay are elite to say the least, and uses her armors and weapons to help her to get the upper hand in a fight. Even Jellal hinted that Erza was powerful enough to be one of the Ten Wizard Saints, as resurrecting Zeref required sacrificing someone about as powerful as them, and he was planning to use Erza to accomplish this.
3.Sakura Haruno [Naruto]
Sakura’s abilities go largely unseen and undeveloped. While she is shown to be very proficient with basic ninja abilities during the few battles she participates in, Sakura lacks any unique traits that set her apart from the rest of Team 7. Her teacher, Kakashi Hatake, notes that Sakura has an excellent control over her chakra.After training under Tsunade for two-and-a-half years, Sakura acquires two abilities that rely directly on her precise chakra control. The first and most common of these two is her ability to heal wounds, giving her the position as her team’s medical ninja. Due to the speed and proficiency with which she can heal others, many characters have noted Sakura to be more talented than most medical ninja with far more experience.Because a ninja team relies on its medical ninja to survive, Sakura must both avoid opponents and keep them at bay during battle.This is accomplished through Sakura’s second ability: her superhuman strength.By building up chakra in her fists and releasing it on contact with a target, Sakura can reduce most obstacles to rubble with great ease.
4.Boa Hancock [One Piece]
Hancock is widely considered to be extremely powerful by friend and foe alike. Ruling beside her sisters, Hancock has power over Amazon Lily and the rest of the Kuja women. As the Empress and Captain of the tribe, she is most likely the strongest Kuja warrior. The Kuja believe that “strength is beauty”, and since all members of the tribe state that she is the most beautiful in the world, they believe she is very strong, and the strongest among the entire tribe. It is to be noted that only the strongest Kuja warriors are allowed on the country’s pirate ships, Hancock and her sisters were strong enough to be there when they were small children, although it is possible they were just apprentices like Shanks and Buggy.Her strength is so great that it has even been acknowledged by Fleet Admiral Sengoku of the Marines.Further testament to her strength is how she was one of the three Shichibukai who managed to leave the war without sustaining any injuries. The fact that she can earn a 80,000,000 bounty after her first campaign as a pirate further supports her capabilities.
5.Rukia Kuchiki [Bleach]
Rukia’s greatest strength is her knowledge of Kidō, amongst her known skills are those for binding, healing and destruction. However, as she said herself, while her Kidō skill at the Shinō Academy were the highest of her class, the sheer power of them were just average when she joined the 13th Division.Through continuous training, she has greatly developed this skill. She is able to switch from Zanjutsu to Kidō without delay upon losing her Zanpakutō.She has shown she is able to use several high-level Kidō in rapid succession without incantations and still have considerable control and power. She has also shown great skill for using various spells in unique combinations, even using multiple spells simultaneously. Rukia has shown that she is capable of using a level 61 Bakudō spell and a level 73 Hadō spell consecutively, though she needs to chant the incantations for both to perform them.
Clare is the protagonist of Claymore. She is the only known Claymore to have taken in the flesh and blood of another Claymore to become one, rather than taking in the flesh and blood of a Yoma, making her a quarter-Yoma as opposed to half-Yoma like other warriors. As such, she was given the rank No. 47. Despite this, she shows great powers when fighting Yoma and Awakened Beings, and has acquired great techniques.
7.Misaki Ayuzawa [Kaichou wa Maid Sama!]
Seika High School, once an all-boys school notorious for its wild students and for generally being a terrifying place for girls, has recently become a co-ed school. With the female population still a minority and living in fear of the over-the-top antics of the males, Misaki Ayuzawa takes it into her own hands to reform the school and allow the girls to feel safe in the rough environment.
Training, studying, and even becoming the first female student council president of the school, Misaki has gained a reputation among the male students body as an uptight, boy-hating dictator and as a shining hope for the teachers and fellow female students. However, despite her tough-as-nails appearance, she secretly works part-time at a maid café in order to support her family. Unfortunately, her hard-earned reputation is threatened when the popular, attractive, and somewhat impassive Takumi Usui takes an interest in her after discovering her in a maid uniform after school.
8.Gunslinger Girl [Gunslinger Girl]
Set in Italy, Gunslinger Girl follows the exploits of the Social Welfare Agency (often referred to as simply “the Agency”), ostensibly a charitable institution sponsored by the Italian government. While the Agency professes to aid the rehabilitation of the physically injured, it is actually a military organization specializing in counter-intelligence and counter-terrorism. It is composed of two independent branches: Public Safety, its surveillance and intelligence-gathering division, and Special Ops, the anti-terrorist division. Special Ops is itself divided into Sections 1 and 2, the latter of which employs young girls fitted with cybernetic implants as agents. The implants, which consist of synthesized muscles and carbon fiber frames, result in heightened strength and reflexes as well as high resilience to damage and pain. Each girl is paired with a male trainer, or “handler”, and together they are referred to as a fratello — Italian for “siblings”. The handler is responsible for the training, welfare and field performance of his charge, and is free to use whatever methods he considers suitable. While these methods vary according to the handler, a common part of each girl’s regimen is brainwashing called “conditioning”, which produces a deadly assassin with unquestioning loyalty to her handler but also limits her life span.
9.Ayano Kannagi [Kaze no Stigma]
Sixteen year old Ayano is a skilled En-Jutsushi and the successor to the Kannagi family’s head. She is arrogant and irrational, usually taking action by herself even while going against orders. Though she seems undisciplined, she is very proud of her heritage.Ayano’s power is the Crimson Flame, although she is not yet able to consciously control it. She also holds Enraiha, the Kannagi’s sacred sword, which she won by defeating Kazuma at the successor ceremony four years before the start of the story. The sword has fire properties and can be summoned by Ayano at any time.
10.Shana [Shakugan no Shana]
The main female lead of the series and a Flame Haze. Initially she is concentrated solely on her duty as a Flame Haze, going as far as to not bearing even a name. She sees Yuji only as a Torch, an object, and is marginally interested only because of his status as a Mystes. However, she slowly opens up to Yuji, coming to think of him as a person, despite being a Torch, and eventually comes to love him. Until she met Yuji, she was identified by only her Flame Haze title “Flame-Haired Blazing-Eyed Hunter,” or her nodachi, Nietono no Shana (贄殿遮那?, “Vairocana of the Offering Room”). Yuji, in his need to humanize her, chose to name her “Shana” after her sword. Shana has a habit of saying “Urusai! Urusai! Urusai!” which means “Shut up! Shut up! Shut up!” whenever Yuji asks her questions or makes remarks that disturb her original point of view. But in reality they really care for each other. She has a great fondness for melon bread. Shana later comes to the startling conclusion that she loves Yuji, and even confesses it to him in the last episode of the first anime series when she thought she was going to die, but he does not hear what she said. Shana is continually torn between her mission to protect the balance, and her love for Yuji. Due to a decision she made near the end of the first season of the anime version, the closeness they once had begun to erode as Yuji kept a distance from her because of it. Yuji adopts a viewpoint similar to Shana’s in the beginning of the series. However, Yuji comes to realize that he was wrong, and their relationship seems to be restored.
Source : myanimelist, wikipedia