I hope I surprised people a little bit with this one. Maybe not. But I would love to see the Doctor go face-to-face with himself. We sort of got to see this happen in Nightmare in Silver where the Doctor was fighting something inside of him, but I would want to see what would happen when the Doctor faced the ultimate enemy himself. It would be near impossible to outsmart him, because its the same person. He knows what the Doctor would do in a time like this bonus points if he can see inside the Doctors mind. Evil Doctor would be a match like no one else has seen in the History of Doctor Who, and I think it would be amazing to watch Peter Capaldi fight himself. This comes out to a somewhat selfish need for Peter Capaldi to play a villain. Since announced as the Doctor, Ive wanted him to actually play a villain. He has the ability to have that look about him that says villain. Onscreen it would be wonderful to see him fight himself, and put Doctor Whos special effects to the test, and as a voice, it would be a wonderful episode to show a true inner struggle. Either way, this would be a companion-heavy episode, and no ones better equipped to handle this than Clara. Okay, theres my ten. What about yours? Let me know in the comments who you think the Doctor should face off?