Who do you think would win? Marcus Fenix the fearless soldier taking on hordes of the tough army of locust OR! The merciless spartan Master Chief, who fend of thousands of enemies with his superior SCI-FI weapons!? I want to hear what your thoughts are. BUT! You have to use detail of the causes or reasons or anything like that to support your theory, belief or reason, Because come on sure you can pick sides but you need proof or your just gonna sound ridiculous. Including their video game logic such as Gears of War's wall bouncing and Halo's spartan's not being able to run! COME ON! WHAT ARE YOU WAITING FOR? HURRY UP AND PICK A SIDE! WHO DO YOU THINK WOULD WIN IN A NOTORIOUS CLASH OF THE LEADING WARRIORS OF THE MICROSOFT GAMING UNIVERSE!?