10. We'd Like: A Doctor-Off
This may go without saying, but having two Doctors on our screens at once is going to be awesome. As a new-generation Whovian, David Tennant and Matt Smith are two of my favourite Doctors and to have both at once can only be a win-win situation. Now, I know that it's been a while since we heard the news about this the infamous shoe-picture tweet kept fans happily speculating for months however I think now, right on the eve of the 50th anniversary, it's worth pointing out again what a good idea this is. There's always been a question of why the Doctor hasn't been bumping into himself on occasion (he must be very organised to keep track of 12,000 years...) and it was fairly inevitable that, at some point, this would happen. On top of that, the combination of David Tennant's slick and somewhat tragic 10th Doctor bantering with the always goofy know-it-all 11th Doctor is going to create some cracking back-and-forth dialogue. It'll be great to see them both trying to out-do each other.