Wow - this will take some time for me, since I'm comfortably directly aware of only three Old Who doctors (or four, looking at the Eighth along with the Third, Fourth, and Fifth.) I know One from my childhood, but haven't watched him lately, and have watched (and liked) two Two adventures. I've gotten through two Seven adventures, and I'm drawn to him, but I want to see more of his later adventures. I did watch a lot of Six, but the poor man was so awfully directed and written that I was put off by him. I'm told that he comes off far better in the non-television adventures ... anyhow, yes, I shall think on the Old Who Doctors. I can easily talk about New Who, although I'm rather surprised at how my affections have evolved.

tl;dr: I love this, and will work on it!