My choices
Power Girl - Super strength, heat vision, freezing breath, super senses, flight, invulnerability, knowledge of computers.
Firestorm - Flight, Energy Blast, transmutation powers.
Wonder Woman - Super strength, flight, tactical knowledge, unbreakable magic lasso that can control minds.
Scarlet Witch - Powers can cause chaos and opponents powers to malfunction, telekinesis, telepathy, mental illusions, flight.
Rogue - Flight and super strength, ability to render anyone she touches unconscious while gaining their powers and knowledge.
Invisible Woman - Invisibility, flight, force fields.
Worst Case Scenario
The Inferior Five
Jean Grey
The villains laugh while Jean goes Dark Phoenix.