I didn't even have to think about this I would be chosen from the gods to be the dude who would save the world. What really cool about that is that you get second chances so if you die the gods grant you a second chance.
Ahh which character,hmm.......this is a hard one it's a toss-up for Ivy(I hope i don't have to go into details,let's just say im a perv) and Nathan Hale,he'd end the war with the terrorists in a jiffy =D