Well, while I'll put in a vote for Creddie as my secondary ship, my couple option isn't even up there....
Which couple do I want more---SPAM!!!!!!!!!!!!!!! They are just fantastic together. And Spencer is about the only person Sam doesn't torment, and if she does pick on him he gets super sad and offended. They're freaking awesome, and if you pay attention they have TONS of little moments They are so well suited for eachother!
And before someone gets on me about the age difference just remember, Sam was held back in grade 3, so the show really only needs to be on another year or 2 for it to be "okay". Also Spencer could quite possibly be the most immature out of all of them, they're kinda on the same wave length.
Sorry, had to show my Spam Love in case no one else dared