Who Would Win?

Lester

Assassin, professional criminal, former mercenary

Perfect Accuracy, Expert Marksman, Expert Martial Artist, Adamantium-Laced Skeleton, Weapons Improvisation

Playing Cards, Shuriken, Improvised Projectiles

Formerly Dark Avengers, Thunderbolts, employee of Kingpin, Purple Man, Eric Slaughter, Mysterio; formerly US Army

Jean Grey

Adventurer

Telepathy, Telekinesis, Phoenix Force Host, Psychic Blasts, Astral Projection, Mind Control, Cosmic Pyrokinesis

X-Men Uniform, Cerebro (occasional)

Formerly X-Men (founding member); Clan Rebellion, Muir Island X-Men; X-Factor/X-Terminators (founding member); Brides of Set