I realize the canon breaking implications this have given that Annie Oakley looks like mami tomoe and kisama Rose looks like tsuruno yui but I honestly don't care.

Mami tomoe (candeloro)

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Personality: mami forced herself into the mentor role, she wants to mean something to other people because she has been lonely ever since she became a magical girl. She doesn't care for the type of magical girls who hoard grief seeds to themselves or let familiars grow into witches. All she really wants is too have friends especially ones of the magical girl variety.
Event ability: candeloro (she can call upon the power of her witch form candeloro in the form of a doppel attack, this also cleanses her soul gem, her magic is linked to a soul gem that, if corrupted enough, will cause her to become a witch however this can be avoided through the use of her doppel attack)
Hidden abilities: Holy quintet (doubled power when fighting alongside another person with this ability, doubled power to grand magic which fighting alongside another person with this ability, doubled power to doppel attack when fighting side another person with this ability)
I won't be lonely anymore! (When fighting on her own her power is doubled but when fighting alongside someone else her defenses are halved while her attack is quadrupled)
Grand magic: tiro finale/candeloro
Class: foreigner-archer
Characteristics: foreigner, female, Japanese, magical girl
Rank: EX
Rank explanation: the archer class is a fairly empty class so she doesn't have much competition and thanks to her abilities when she's paired with the right people she can very easily defeat any enemy given she doesn't take a bit from a grand magic or anything, both her grand magic and doppel attack both hit very hard and since she doesn't draw her power from death even ereshkigal can't stand up to her

Kyoko Sakura (Ophelia)

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Personality: Kyoko was once a sweet girl who worked alongside mami to clear the world of witches however after her father killed himself, her mothers and her little sister she became jaded and focused only on survival, she betrayed mami and almost killed her before leaving mitikihara for good. She isn't all bad though despite her tendency to let familiars kill people so that they become witches she does want to help her fellow magical girls realize that just because they have to live for themselves otherwise they'll just cause others pain.
Event ability: Ophelia (it's the same thing as the candeloro ability but instead her doppel is called ophelia)
Hidden abilities: holy quintet
Let me have a happy dream (she doesn't have access to magic but her physical attack is quadrupled, when fighting alongside mami tomoe or Sayaka miki her strength is doubled again, when fighting against Sayaka miki or mami tomoe her strength is halved)
Grand magic: Ophelia/kugatachi
Class: foreigner-warrior
Characteristics: female, Japanese, foreigner, magical girl
Rank: EX
Rank explanation: Kyoko is just a better version of last years dean bloom (the broken ones) event servant, she has a better physical attack buff in exchange for her lack of magic and 2 additional power buffs along with a free grand magic attack in the form of Ophelia and a not so free one that still does good damage in the form of kuagatachi.

Sayaka Miki (Oktavia Von Seckendorff)

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Personality: she comes from a different time than the rest of the girls, while the others come from a world where rumors come true in kamihana city, Sayaka comes from a world where witches no longer exist thanks to the wish of one particular girl. Sayaka became her Stewart and as such as a host of new powers when compared to her standard version.
Event ability: oktavia von seckendorff (a doppel ability)
Hidden abilities: holy quintet
Doppel control (she can call her doppel even when her soul gem isn't fully corrupted to come help her battle, she can also call the familiars of her doppel to help her in battle this will remove corruption form her souls gem however so the power is limited)
Grand magic: oktavia von secekndorff/the five Lillian's crescendo
Characteristics: female, Japanese, foreigner, magical girl
Class: foreigner-warrior
Rank: EX
Rank explanation: what Sayaka lacks in raw power she more than makes up for with her doppel control ability which can be used to support her teammates, damage the opponent, or summon familiars to fight alongside her, Sayaka's only downside is that when her soul gem isn't corrupted at all she has to fight head on and her lack of raw power can really start to show then.

Homura Akemi (the devil of love)

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Personality: a version of homura from the same time as Sayaka miki, she split off the part of a universal laws known as madoka kaname and the power required to do this was derived from curses and not wishes therefore making her a devil it madoka's goddess.  She will stop at nothing to make sure madoka is safe and happy even if that means fighting madoka herself, she doesn't like the other girls very much but she gets along with them because it makes madoka happy.
Event ability: the devil of love (she can access a second transformation into devil homura and can utilize the curses that materialize in her soul gem for attacks however she cannot summon a doppel)
Hidden abilities: devils mark (magical girl) (doubles the power of magic that is specifically related to he magical girl powers)
The clara dolls (she can still summon the familiars she had when she was a witch known as the clara dolls by utilizing the curses in her soul gem)
Grand magic: surgam identidem
Class: foreigner-caster
Characteristics: female, magical girl, Japanese, foreigner
Rank: EX
Rank explanation: homura has access to time magic which already gives her EX rank because no other caster how access to that currently however her power is also backed up by the Clara dolls which can protect her from warrior class opponents and devils mark gives her the power boost she needs plus she still isn't held back by the would gem thanks to her event ability

Madoka kaname (law of cycles)

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Personality: a kind girl who's only wish is to help people and bring hope to everyone, she cares for all her friends very much but she is a little afraid of homura.  She is particularly close to Sayaka miki
Event ability: law of cycles (she has access to a second transformation and her souls gem does not become corrupted)
Hidden abilities: endless battle (she gets more powerful as a battle goes on, takes half damage from grand magic)
Ive been waiting for this moment (fake) (she cannot access her event ability until she has had the truth revealed to her, once her event ability is unleashed she gains the ability to create clones of her first form to fight alongside her, when she has her event ability unleashed and she's fighting someone who can call upon a doppel, they lose their body unless they have the ability "doppel control")
Weapons: rose bow
Characteristics: female, magical girl, Japanese, foreigner
Class: foreigner-archer
Rank: A+
Grand magic: there's no need to despair anymore (fake/ultimate)
Rank explanation: madoka is probably the worst of the holy quintet simply because she's so restricted, endless battle is a great ability however her second ability and event ability are all locked behind her knowing the truth which isn't hard to accomplish within the context of the event and when they are unleashed she becomes one of the best but she's has to be judged on everything she has and even if her grand magic has 2 alternate forms that both hit really hard it doesn't make up for her locked skills.