Who Would Win?

Mar-Vell

Air Force pilot, Avenger, cosmic protector

Energy Absorption, Photon Blasts, Flight, Superhuman Strength, Superhuman Durability, Binary Form, Cosmic Awareness

Kree-enhanced suit — relies on cosmic energy absorption powers

currently Avengers, former companion to the X-Men (as Carol Danvers), former member of the Starjammers (as Binary), Former Avenger (as Ms. Marvel)

Alexander Summers

Currently Adventurer, formerly Graduate student in geophysics

Cosmic Energy Absorption, Plasma Blasts, Heat Immunity, Energy Containment Suit, Flight (limited)

Containment Suit (plasma control)

Uncanny Avengers; formerly X-Men, Starjammers, X-Factor Investigations, Six, Brotherhood, X-Factor, Dark Descendants, Genoshan Magistrates, Defenders for a Day