Who Would Win?

Raven Darkholme

Spy, assassin, Brotherhood leader

Agility, Stamina, Intellect, Healing, Weapon Master, Chameleon, Shape Shifter, Insanely Rich, Elasticity, Unarmed Combat, Escape Artist, Tracking, Adaptive, Marksmanship, Claws, Stealth, Leadership, Longevity

Firearms, various disguises via shapeshifting — rarely needs equipment

Avengers, Brotherhood of Evil Mutants, Chevaliers, Daily Bugle, Dark X-Men, Freedom Force, Hellfire Academy, Horsemen of Apocalypse, Marauders, Masters of Evil, Mutant Underground, National Security Council, Press Gang, Red Guard, The Hand, The Quiet Council of Krakoa, Weapon X-Force, Wolverines, X-Calibre, X-Corps, X-Factor, X-Gene Mutant, X-Men, Xavier Institute

Dione

Conqueror, worshiper of Death

Superhuman Strength, Invulnerability, Energy Projection, Telepathy, Cosmic Awareness, Immortality, Genius-Level Intellect, Infinity Gauntlet

Infinity Gauntlet, Thanoscopter (joke), Double-Bladed Sword

Zodiac (ally); formerly Infinity Watch, Defenders