If one of the fictional superheroes was real...

[Robot Number V]

Isn't the phrase "fictional superheroes" in the title kind of redundant? I mean, are there some non-fictional superheroes I don't know about?

Anyway, I'm going to go with Iron Man for the same reasons as everyone else. I don't want Superman randomly deciding to kick the planet into the sun.

 

[saintdane05]

Captain America. Because
A: I am an American
B: He is the nicest man alive.
C: I AM AN AMERICAN!

He also has a badass theme song.
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[Kilroy17]

Green Lantern. He can go anywhere, even space so protection from asteroids etc. On earth he'd basically unstoppable, any threat to us, even from ourselves, he could handle quickly and efficiently. Also if he were to ever die the power ring literally chooses the best(well bravest) person on the planet to replace him ensuring a good Green Lantern always.

 

[Legion]

Mintberry Crunch, for what I hope are obvious reasons.

 

[Knight Captain Kerr]

The Doctor. What do you mean The Doctor isn't a superhero? Well dash. Really most of them would be pretty cool.

 

[Lt._nefarious]

Powergirl because, well...

Spoiler

'nuf said...

Okay, seriously? Batman. Why? Because Batman.

 

[Alaster Angelo]

Dr Strange. If he exists then magic exists and if magic exists I can learn it.

I like the way you think.

 

[Aris Khandr]

Thor. Just to frak with the religious. Proof of a real god, where is your god now?

Otherwise, Captain America. But the 80s and 90s one, not the modern one written by Millar and made into a giant jerk.

 

[mechalynx]

Thor. Because where he's from magic and science are one and the same. And his science can produce hammers inside of stars.

 

[AngloDoom]

Iron Man - because Tony Stark occasionally releases some of his wonderful technology for the good of his fellow humans and we could really do with alternative energy sources right now.

 

[Johnny Novgorod]

Captain Planet. He'll come in handy once we're done with the ozone layer, trust me.

 

[Lt._nefarious]

Powergirl because, well...

... Tits.

Because she teaches young women that you can be independent and pretty without compromise. Shows gals they can kick ass and look good doing it!

... Also yes.

 

[gusenborge]

Deadpool.

He might be mad and homocidal but he still does it because he thinks he is an hero!

That or the punisher.