Main Lead with Secondary Lead

As the title stated I'm looking for a drama where the main lead ends up with the secondary lead. I get somewhat frustrated when the main lead ends up with the other main lead when sometimes the story would be much better if that didn't happen. I sometimes even quit watching a decent drama for this very issue. So if you know some please list them all.

She ends up w/ second lead b/c the audience insisted on it after the show started airing!
---  Dream High
---  How to Meet a Perfect Neighbor
---  Queen of Reversals
---  Last Cinderella  ....  (They filmed 2 endings, had the audience vote on who they want her to end up with)
......
--- Summer's Desire  .... (Two main male leads, no second, u don't know who she'll choose until very last episode)
......
--- Empress Ki ... Not sure if he was supposed to be 1st or 2nd lead ... But half way thru, they reduced role of the King and gave more time to emperor, b/c audience liked him more.

EDIT: 
Thanx @zeamays  below.. I forgot about that one.
King of Baking, Kim Tak Goo ..... She ends up w/ second lead b/c audience wanted it.

thanks everyone, ill check out some of the dramas listed.

Surplus Princess