Meh.
It's a good song, but I could think of much more deserving songs to be singles. "Speak Now," "Sparks Fly," "Mean," "Long Live," or "Haunted" better be a single, or I'm going to cut somebody. "Speak Now" has probably the best chance of being the top single of the album! It's so freaking catchy! I fell in love with it on the first listen. I could see a really hilarious video going along with it, too.
At least "Back to December" should get a boost next month just because of the title.

I see it doing well, though.