RAGNAROK

In yore-gone days of old, prophets foretold of a day when the greatest warriors of history would rise again for one last climactic battle that would herald in the end of time.  They called this day:

Today's Match:

Optimus Prime VERSUS Iron Man

The Rules:
You know how these things start.  When Optimus made those cracks about Tony Stark's mother, he was joking, but you know Tony.  He was a little drunk and took umbridge.  Now it's a slug-fest.  When one of the contestants is too damaged to continue fighting, the other is the winner.  This is, by the way, Stark's regular outfit.  No Hulk-buster or special customized suites allowed for this fight.

Arguments:
Optimus Prime:
Autobots are pretty impressive pieces of hardware, and none moreso than Prime.  It would take a small nuke to even scratch these guys, and given that they are highly evolved mechanical life-forms from a society far more advanced than earth, Optimus makes Stark look like a steam-powered sewing machine in compairison.  It'll be all, like, 'crunch'  "Did I just step in something, Ironhide?  Oh well.  You were saying?"

Ironman:
With the extremus power, Ironman is one of Marvel's heavy hitters.  He's gone toe-to-toe with Thor and the Hulk and lived to tell the tale.  And, I mean, this is Tony Stark.  Come on guys.  Fighting giant robots is basically all he does.  He's got the experience, he's got the tech, and he's got the brains.  He won't just blindly slug it out: he'll be analyzing his oponent as he fights, incoporating their tech into his armor on the fly.  Tony will take this.

Okay, now you decide.