I thought I had posted here. Apparently I hadn't.
Favorite Doctor: First off, I should probably clarify that I haven't seen much classic!Who, but what little I saw, I more or less enjoyed. I think that every Doctor had something to add to the show, and so it's reeeeally hard to pick a favorite. But I'd have to say that Eleven is my favorite. Though I do love Twelve. Again, so hard to choose just one...
Favorite TARDIS: The TARDIS changes almost as much as the Doctor. I love Twelve's interior decoration the best. Come on. It's full of books, guys!
Favorite Companion: Donna is just awesome. She totally should've met Nine. But I also loved Amy and Rory a lot, especially towards the end of their arc.
I do like Clara, but honestly I kinda wish she wouldn't come back for Season 9. We need a new companion, already!
I've seen some great ideas around about who would make a great companion. Among my favorites are 1) an old no-nonsense Chinese lady, 2) brother and sister, and 3) a guy who stays on of his own volition and not because of a love interest.
Favorite Villain: It's a toss-up between the Master and the Weeping Angels.
The Master is fascinating (and I loved Derek Jacobi in the role, brief though it was), but I honestly have no idea how s/he's still alive.
The Angels have got to be the coolest concept I've seen. "They're the only psychopaths in the universe to kill you nicely." Just so long as they don't send me to the Middle Ages.
I also liked the Silence quite a bit.
The Cybermen take the cake for freakiest villain. I don't know why, they're just plain creepy.
Favorite Episode: Hands down "Vincent and the Doctor." That episode... all the feels. And van Gogh is an amazing artist.