I don't know what to consider this, but it started off with a dare. Shadow_The_EdgeLord asked who the most violent was. Including their genderbend's. I'm sorry, but I can't put this into a scenario. To make up for that, I'm making another introduction. In this, it'll have the names of the characters and their genderbent names. There will be a violence scale and personality description. I'll just type and you'll get the concept. Violence scale is 1 to 10.
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Pine the Leafeon

Personality: He's a nature lover, not a fighter. He only fights when necessary or for a dare.
Level of Violence: 2

Flora the Leafeon (Genderbent Pine)

Personality: She's a nature lover and refuses to fight. She only attacks in dares or in fear.
Level of Violence: 1
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Celeste the Sylveon

Personality: She's really mischievous and a shipper. She loves fanfiction and anything sweet.
Level of Violence: 4

Magi the Sylveon (Genderbent Celeste)

Personality: He is a prankster, but also really mysterious. People sometimes say he is like an opposite of Celeste, even if it's pretty much true.
Level of Violence: 6
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Dawn the Espeon

Personality:  Dawn is chill about everything. She loves to wake up early and watch the sunrise.
Level of Violence:  3

Taiyo the Espeon (Genderbent Dawn)

Personality: He is very, very threatening. He loves weapons and death.
Level of Violence: 10
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Mist the Vaporeon

Personality: She is mostly quiet and loves water. Deep down (in the sea. Sorrynotsorry) she loves excitement, but is too shy to say anything.
Level of Violence: 4

Ame the Vaporeon (Genderbent Mist)

Personality: Unlike Mist, he is not shy at all. Whenever in a bad situation, he becomes the leader of everyone and makes sure that everyone's focused.
Level of Violence: 7
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Grace the Glaceon

Personality: She can be very sassy at times. She does not like childishness, despite her being childish at times. However, when she's doing something, she's pretty chill. (Y'all have Permission to kill me)
Level of Violence: 6

Frost the Glaceon (Genderbent Grace)

Personality: He's pretty chill about everything. He loves treading around during the winter, admiring the cold and wind.
Level of Violence: 3
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Dread the Misteon (Ghost type eeveelution)

Personality: She's very hard to understand at times. She loves pranking people, but she only shows her emotions when around Zephran.
Level of Violence: 4

Kuro the Misteon (Genderbent Dread)

Personality: He is more of a prankster than Dread herself. He is the top prankster throughout the family. He's as mischievous as a Zorua, possibly even more!
Level of Violence: 8
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Flare the Flareon

Personality: Like a lot of fire types, he has a short temper. He will sometimes get so angry that he almost destroys forests with Lava Plume, before getting stopped by Mist or Ame.
Level of Violence: 9

Blaze the Flareon (Genderbent Flare)

Personality: For a fire type, she actually doesn't really get angry that easily. She does get angry though, which can result in disaster.
Level of Violence: 6
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Spike the Jolteon

Personality: Much like Flare, he has a short temper. However, he is very easy to embarrass. He can't stand being in crowds cause he's afraid of hurting someone, if not everyone with his electricity.
Level of Violence: 5

Arashi the Jolteon (Genderbent Spike)

Personality: Unlike her counterpart, she loves being the center of attention. If she doesn't get the attention she wants, she'll be enraged and possibly gain everyone's attention by giving them a Shock.
Level of Violence: 9
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Dusk the Umbreon

Personality: He is very sneaky and aware of his surroundings. However, he's only sneaky when necessary. He loves watching the moon rise at night. Much like his girlfriend, Dawn. Who likes to watch the sun rise.

Dusk and Dawn: CAN WE NOT TALK ABOUT THAT!?!?!

Me: Fine.

Level of Violence: 3

Tsuki the Umbreon (Genderbent Dusk)

Personality: She is dark. This is not a dark type joke. She literally likes to scheme and think of ways to torture. However, only the people she hates perish. Even in the Genderbent forms, Tsuki and Taiyo love each other.
Level of Violence: 10
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Zephran the Zephryoseon (Pronounced Zef-rós-eon) (Flying eeveelution)

Personality: He loves flying in the wind. For some reason, he only faces the south when feeling the wind go by. He loves adventure and the thrill of heights.
Level of Violence: 2

Makani the Zephryoseon (Genderbent Zephran)

Personality: Even in this form, Makani is just like Zephran. Unlike her counterpart, she likes the feel of warm breezes, even in hot summer days.
Level of Violence: 2
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Hornet the Waspeon (Bug type eeveelution)

Personality: He likes to take the easy way out of things. He is very loyal and helpful to others, which kind of irritates a lot of people. Even the other eeveelutions.
Level of Violence: 3

Deborah the Waspeon (Genderbent Hornet)

Personality: She loves flowers and overall nature itself. She sometimes acts like she's royalty and thinks she can rule over all the other eeveelutions, which annoys and angers all the eeveelutions. Even innocent ones like Flora.
Level of Violence: 5
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And there you have it. All the Eeveelutions and their genderbends. So to answer Shadow_The_EdgeLord 's question, the one who wins most violent are Taiyo and Tsuki with a level of violence of 10.