If there is one superhero team in comic books that can never seem to get along, it is the X-Men. The team started out being Charles Xavier's attempt to start a school to train young mutants and protect them, while also using them as soldiers to protect the world. His goal was to use these young heroes to help mutants and humans live together in peace.

It never worked out the right way, with Magneto's fears of a repeat of the Holocaust, but against mutants. Not only that, but the school's teaching methods caused some to rebel and some students to take sides, with Wolverine and Cyclops the two most obvious examples. Here is a look at the 10 most vicious fights between members of the X-Men.

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10 JEAN GREY VS. X-MEN (LAST STAND)

Professor X faces off against Jean Grey in X-Men: The Last Stand

Arguably, the worst X-Men movie ever made was X-Men: The Last Stand, where Brett Ratner came in and destroyed a franchise that was riding high after two great films. Ratner and the production decided to move right into the Dark Phoenix Saga but then combined it with the mutant cure story.

Jean Grey was a stone-cold killer in this movie. In a very controversial moment, she even killed Cyclops offscreen, taking out one of the most important members of the team like he was no one. However, it was her moment where she was face-to-face with Professor X and then vaporized him that totally solidified her viciousness.

9 JEAN GREY VS. X-MEN (DARK PHOENIX)

Dark Phoenix

Fox decided that they wanted to try to make a second Dark Phoenix movie, and this time, they made her story the center of attention instead of cramming everything into one film. The biggest complaint here was that they had not built the new Jean Grey up enough for anyone to care about.

However, the moment that she lashed out at Mystique, someone that fans did care about, and killed her in one vicious move, Jean Grey became a villain even the passive Beast wanted to kill.

8 PHOENIX FIVE VS. WOLVERINE (AVX)

The Phoenix Five Consisting Of Namor, Magik, Cyclops, Emma Frost, And Colossus

Avengers vs. X-Men was one of the most anticipated storylines in years. The Avengers, who ordinary citizens loved and respected, went into battle with the X-Men, heroes most people feared and hated. It all started when the X-Men wanted to deal with their own problems, which was the Phoenix Force coming to Earth and possibly searching for Hope.

Wolverine, a long-time member of the X-Men, took the Avengers' side, as did Professor X in the end when the Phoenix Force created the Phoenix Five. The fact that Wolverine's original plan was to find the young Hope Summers and kill her shows how vicious this battle was.

7 ARCHANGEL VS. X-MEN (APOCALYPSE)

The original X-Men were mostly good kids, with Iceman, Angel and Beast typical teenage boys. Cyclops always had an attitude problem, and Jean Grey ended up as the Dark Phoenix, but the other three were good guys. That made the eventual turn of Angel so disturbing.

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When Apocalypse was preparing to create his Horsemen, he found a despondent Angel. Warren had lost his wings and his desire to live. When it seemed he took his own life, Apocalypse saved Warren and turned him into Archangel, and he took the X-Men to the limit on many occasions, as vicious as any villain they ever battled.

6 WOLVERINE VS. X-MEN (ENEMY OF THE STATE)

Enemy of the state

When it comes to the X-Men, there is no other member with a vicious streak as dark and dangerous as Wolverine. He is deadly, and there is no one like him in the Marvel Universe, with his healing factor making him impossible to defeat and his rage turning him into a wild animal.

In Enemy of the State, HYDRA teamed up with the Hand and the Dawn of the White Light with the intent of killing and then resurrecting superheroes under their control. They did this with Wolverine and then sent him on missions, which included a vicious battle with both S.H.I.E.L.D. and the X-Men.

5 WOLVERINE VS. CYCLOPS (SCHISM)

Cyclops and Wolverine fighting in X-Men Schism.

The two members of the X-Men that battled more than any other were Cyclops and Wolverine. The two guys were polar opposites and hated each other, even when they were working together. Cyclops was the boy scout who wouldn't accept Wolverine's wild side. Wolverine was honorable while Scott developed a more vicious side that used kids as soldiers.

That final difference led to Schism. In this story, Cyclops was convincing the kids under his control that sometimes murder was needed to stop villains. Wolverine, who killed more people than almost any mutant, rejected that. The two men fought their most vicious battle, and the X-Men split right down the middle.

4 NIGHTCRAWLER VS. ICEMAN (AOA)

Nightcrawler is someone who was always conflicted, a guilt-ridden Catholic who looked like a demon. However, at the end of the day, he was always a loyal and honorable hero. Iceman was the most innocent of the X-Men for most of his career, someone who showed the brightness in the dark that the mutants lived in.

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That made this Age of Apocalypse moment so tragic. Iceman is shattered into a million pieces, and when he reforms, he lost his conscious. Iceman joined Archangel and killed anyone, including former friends. Nightcrawler finally pushed him into an incinerator and burned him alive in one of the most vicious moments in Marvel history.

3 DARK PHOENIX VS. X-MEN (WHAT IF)

What If? stories are often fun excursions to see what would happen in worst-case-scenarios. In the What If? comic asking what if Jean Grey lived, it presented a horrifying look at a future that few could have dreamed of. While some fans wanted Jean to live, seeing what she would become solved those dreams quickly.

The power of the Dark Phoenix overpowered Jean Grey. Even as her friends in the X-Men begged her to let them help her, she massacred them one-by-one. The love of Cyclops and Wolverine didn't sway her. The innocence of Nightcrawler and Iceman didn't stop her. Then, Jean destroyed the world.

2 CYCLOPS VS. PROFESSOR X (AVX)

Cyclops-Kills-Prof-X

Avengers vs. X-Men contained some seriously vicious moments. Wolverine setting out to kill Hope Summers was one of them. Namor destroying Wakanda was devastating. Black Panther annulling his marriage to Storm was another one. However, it was the moment where Cyclops became a martyr and murdered Professor X that tops the list.

Charles was the closest thing that Scott ever had to a father. If anyone could talk him down, it was Professor X. It didn't work, and in front of the Avengers and X-Men, Scott cut down Xavier, and even those who supported Cyclops couldn't deny the vicious savagery of the moment.

1 WOLVERINE VS. X-MEN (OLD MAN LOGAN)

Old Man Logan Dead Jubilee

The most vicious fight between members of the X-Men was not even meant to be. Wolverine went to the mansion and saw a rogues' gallery of villains attacking the X-Men. Wolverine took action and begged the X-Men to get the students to safety as he went into battle.

The bad guys didn't stop and Wolverine, in a savage, vicious, overprotective manner, ended up killing them all. The problem is that these were not villains. Mysterio caused Wolverine to see the members of the X-Men as villains and Logan killed all his friends and teammates, finishing with Jubilee. This was the start of the Old Man Logan storyline.

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