Which story should I continue?

Okay, so I know that I've been too lazy to write another chapter of any of my stories. There are like some days I just don't want to, and other days that I want to but I can't because then a whole bunch of stuff pile on me(like stupid homework -_-). Since, I'm on winter break, I (FINALLY) decided to continue writing my stories! But which one should I continue first off...?