This came up at the dinner table in discussion with my daughters.

RAMBLE

Ant Man / Scott Lang : A normal guy with a good sense of humor.  If you don't mind the shady past, this guy is a keeper. 

Captain America / Steve Rogers: Would treat you right, but the culture gap might be too much.  However, the body and stamina...oh my.

Hulk / Bruce Banner: Intelligence is a turn on but the emotional baggage of a rage filled monster.  No thanks.

Iron Man / Tony Stark: Way too egotistical.  The money is great but he's got mirrors in his bedroom so he can watch himself during sex.  Pass. 

Loki:  He'd be fun but you could never, ever trust him.  Love is built on trust.  He'd probably only date you if you'd already dated Thor, just to poke at the Thunder God.

Spider man / Peter Parker: Sweet guy with a good heart.  This guy is a keeper, though he has trust issues and likes to keep secrets and take on heavy burdens alone.

Thor: Alpha male to the max.  Confidence is attractive.  But pig headedness is not.  Learn to love him for his faults.

Wolverine / Logan: Honor competing with animal instinct.  He's a loner, so if you don't mind giving him a LOT of space, go for it.  He'll treat you right.

Wolverine!  Though if you are only dating, why not date more than one?  I'd date Tony Stark, Thor, even The Thing.  Spiderman is too whiny.  Loki is not a good guy... could never trust him.  Captain America has always annoyed me... must be a Canadian thing.  I'd date the Hulk, but would be very cautious.  And as of now, I know nothing about Ant Man, so I can't give my thoughts on him.

Not too many Marvel guys I'd choose.  Give me Hellboy, Black Adam, Batman, Moon Knight, just to name a few.

I haven't seen Ant-Man yet, but Paul Rudd as Scott Lang is the only one I'd consider getting involved with personally.

Hugh Jackman as Wolverine is the most attractive physically but isn't date-able emotionally. Ditto for Robert Downey Jr. as egocentric Ironman.

Thor is physically not my type. And I don't feel a strong connection to Captain America or Spider-Man. Cap has a rather "cookie cutter" personality on film and Spider-Man has too many personal problems even to date.

Banner/Hulk is out of the question.

Although he's far too young for me, the film version of Iceman is probably the most date-able character from any of the Marvel movies, based on what we see with both Kitty Pryde and Rogue. (Bobby Drake from the comics, though, is too possessive.)

Tony Stark gets my vote.
Yes, he's got ego problems and he's insufferably smug.

However, he's got great toys and since I'm hetero, its gonna take a lot of money.......