The Doctor has a lot of strong women in his life. One has just left his life, while another is returning in this year's Christmas special. He is utterly committed to both Clara Oswald and River Song, but who does he love more? 

Peter Capaldi fielded the awkward question at a Q&A last night. First a tribute to his departed companion:

And then...

Awww. Nicely sidestepped, Doc.