[quote=@Pathfinder]
Well, I've narrowed my character down to three choices. A good, homegrown Christian guy gets possessed by a demon and gets slightly corrupted by it... while slightly corrupting the demon in turn and leaving the both of them in a cesspool of conflicting emotions. Then we have the [url=https://cdna.artstation.com/p/assets/images/images/001/155/408/large/thomas-tan-ironman2a.jpg?1441195821]Steam Punk[/url], a hero in a miraculous suit of armor who became fairly well known during the Victorian Era before disappearing for over a century in a half and making a comeback within the last couple of years. Finally, we have the last guy, who is armed with an alien battle suit and no idea how to use it properly a la "The Greatest American Hero".

I'm having some trouble deciding on which to settle on.
[/quote]

You can always make all three of them if you can handle them all as they all sound like interesting ideas at the moment. If you do have some difficulty, go with the one you like the most or the one you think you can get the most interesting concepts out of. Either that or plus em into a random number generator and decide who to choose that way :P