User blog comment:Mikeylango/Game leads vs. Super heroes battle one: Master chief vs. Iron man (Movie rendition)/@comment-31.24.33.221-20130501063513

In the end I'd give it to Master Chief. His training and experience a far above Iron Mans and he is used to fight technologically superior enemies. Everyone he's fought in the past 20 years has been superior in technology and he always wins. The movie version of Iron Man isn't nearly as strong as the comic version and his armor can't take as much of a beating, it get's damaged pretty badly on a number of occasions.

In Avengers Captain America was confident in his ability to fight Stark in his armor. While I have no idea how that fight would of gone, Captain America isn't stupid and I don't think he'd pick a fight that could get him killed or seriously injured. So if that is the case, Chief could as well, with more training the Movie verse Captain, greater strength and much higher durability and speed. This is all speculations on my part, but then again Master Chief vs Iron is speculation in it's own right so, I'll keep this comparison.

Then there is something I feel needs to be compared is who these two have fought. Chief has fought off hoards of several types of Aliens foe years on end. Stark was getting overwhelmed in Avengers by the Alien army Loki brought, he did very well early on but as the battle worn on he was starting to have problems. This also indicates he lacks the stamina of Master Chief, he was getting worn out as the battle went on, this is not a problem Spartan's Have, there augmentations and armor keep them from getting fatigued.