ms marvel 

cause she is such a great character.

My choice would be to play as Emma Frost just because I love her oh so much. Normally, she's not in the video games and I'm sooo excited that she's finally in one ! An online game at that ! When she was released , I was sooo exicted lolzx, I jus want a chance to play this game to experience Emma gameplay !! Plus , she's one of the hottest and bitchest Marvel characters :D, what's not to love ? haha <3

Cyclops.

He is the first X-Man.  He is the beginning and the end of Xavier's dream.  We witnessed over the last several months the amount of good that he could do with the Phoenix Force by getting rid of hunger, disease, war, etc.  He stands by what he believes in.  He does what needs to be done.  He is the only one who stepped up to the plate when Mutantkind needed a leader.  He will, now and forever, always be a hero.

Iron Man, because I'm a successful businessman/philanthropist with a heart condition.

And I'm also very, very witty.

Spiderman

I want to pretend that I'm remaking Spiderman 3.

Polaris is the hero I would like to play on Marvel Heroes because she is one very sexy magnetic field manipulator. She makes green hair FAR from gross, dirty, or unkempt. And one of the most interesting things about Polaris is that she has opposite polarity to that of her father, Magneto.

Star Lord, if he ever gets added to the playable character because the Guardians of the Galaxy are an awesome bunch and I'm hoping to reform them with my friends. Rocket Raccoon is already in there so we just need some Groot lovin' (Groot !), Adam Warlock, Drax, Gamora and the rest of the squad.

The only thing better than that would be playing Cosmo. I mean, he's a talking dog with telepathic abilities, what more can you ask for ?

Personally I would like to play as Magneto. He has a long and rich character history and has been both a "good" guy and "bad" guy, which opens up all sorts of options or possible paths to take, or roleplay. Considering he is also a class 4 mutant, he has plenty of bad-assery to go around as well. Anyone who can manhandle Wolverine as if he were nothing more than a gnat, is worth taking out for a test drive ;)

Slapstick

Seriously, everbody who wants a character who is comic relief should look to the good ole days of comics and grab the guy whose powers are based on the Looney Toons. 

Bullets flying your way? Bend and twist like Mr. Fantastic.

Giant robot coming at you? Pull a gigantic mallet out of your.... back pocket and smash it.

Pretty superheroine in a revealing outfit just joined the group? Drop your jaw on the ground while your eyes bug out of your head.

The answer is obvious!

Rocket Racoon! Why? Because its a Racoon that shoots lasers !!! seeing that toon made me throw my wallet at my screen for some reason!.

Loki -

Although I know this has a high chance of not happening, I have always seen Loki as a playable character. His ability to create duplicates of himself as well as shoot the Tesseract's energy from his scepter, much like the wizard class from Diablo 3, could definitely be an asset to this game. Yes, Loki is a villain, but he is just misunderstood, like anyone else who is second in line to heir of the throne. Making Loki a playable ally to this game would definitely give this game a twist of its own.

Who:  "The Hulk"

Why?:  Because he's "THE HULK".  He smashes cities, not neighborhoods.