Tough one!!! Like really tough. I have a lot of favourite Doctor/companion combinations that go back to Four & Sarah-Jane but I will have to go with Rose and the Tenth Doctor as my all time favourite. They brought me back into writing when I had stepped away and I just love a good angsty love story!
But I loved so many including Donna and the Doctor as well. And Seven and Ace, Peri and Five, Amy and Eleven and OFF COURSE Clara and Twelve. UGH SO hard
say you love me 