Normally I hate the friends fall in love stories. But when I started writing one, there are tons of things you can do with it, to make it less cliched and more like a real-life drama. Honestly with Romance/angst/drama the more realistic the plotline and characters, the better the story will be. I think what makes a story less than stellar is that the writer either should NOT be writing, or there's not enough of what could REALLY happen in the story.
For instance right now in my series the two friends (Ali and Nick) who fell in love are beginning to drift apart. They've grown too comfortable with each other, as couples often do after a certain point and having them deal with real relationship issues as far as trust and intimacy, etc.
It's REALLY easy to be like hey they fell in love, happily ever after, the end. lol But that's not how life is and making it reflect life and real relationships is what makes a good Romance story.