I think Draco's ideal ship is the canon one; someone we never heard of. For all Pansy's fawning over hum, I don't think we ever say much affection going the other way.

That one and Neville/Hannah are interesting because the books in noway foreshadow them. Which is good, I mean how often do people really marry the people they fancied in school?

Of course it doesn't work that way for main characters.

The Harry/Angelina thing was just something that came to mind in relation to harry_submits a sort of domineering captain Angelina taking Harry in hand sort of thing.