I was raised with the 3rd, but started watching late last year with 9. Currently on 10 and I don't think I'm far from 11. Current fav is 9 though (although David Tennant is )
I started watching with 9th too and although I'm onto the 10th now I think I still prefer #9. (And I literally started watching them all last Monday. I'm obsessed with the show currently)