It's finally finished!!

I have several reviews to write from the last few days, but I just wanted to take a moment to celebrate the fact that the largest writing project I have ever undertaken (and which I started about four years ago) is finished!! Hurrah! 51,195 words (over 8000 of which I wrote last Sunday) - I didn't know I had it in me. Not all of it is actually mine, since it's based on films, so a lot of the dialogue isn't mine, but about 50% of it is made up of entirely original scenes and all the narration around the transcribed bits is mine, too. Not only is it the longest thing I've ever written, I also think it's the best.

Now, which of the seven other unfinished writing projects I have in my file should I go back to next...?