Who Would Win?

Katherine Rebecca Kane

Vigilante / Military Officer

Peak Human Conditioning, Expert Martial Artist, Detective Skills, Stealth, Advanced Technology, Military Training

Batsuit, Batarangs, Grapnel Gun, Utility Belt

Batman Family (unofficially), D.E.O, Unknowns

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)