I discovered this article via Name That Film on the top 5 marriageable female characters in movies, so I decided to make my own for male characters:
H.I McDunnough, Raising Arizona. He reformed himself from a life of crime and only wanted to do what was best for his wife, too bad it didn't go so well.
Willie Mossup, Hobson's Choice. Possibly the only husband in the history of the movies to admit that his wife's bossiness was a good thing. Also, he and his wife are great partners in business as well as life, so they'll always have something in common.
Lloyd Dobler, Say Anything. Obvious, I know. Not many 18-year-old males would fly to London for their girlfriend's career. On the other hand, he's got his kickboxing, so you know he's not just a hanger-on.
Alfred Kralik, The Shop Around the Corner. When you've found your soul mate, the fact that she's a bit of a bitch shouldn't stop you. Having already aired out both their petty disagreements and their deepest ideals, the rest should be smooth sailing.
Mr. Darcy. Pride and Prejudice. You can't trust the smooth talkers, but a guy who'll bail out your loser relatives after you've rejected him in a humiliating fashion is a keeper.
I almost included Nick Charles from The Thin Man. The first film to have the concept of a married couple as fun-loving best friends is an important landmark, but in reality I'd fear the inevitable alcoholism-related bills later in life. I once counted all the martinis they had and realized if I drank that many I'd be dead. Dude, that's pure alcohol!
Of course, my sweetie is a combo of the best qualities of all five.