After Sylvester McCoy, 7th Doctor, I just lost interest. It was David Tennant who, in my humble opinion, breathed life back into Doctor Who and made me want to watch it again. No disrespect to any who have played the part, it's not an easy torch to carry. David Tennant just seemed to restore the fire and add back in that sense of wonder, comical cleverness, enough seriousness to ensure the Doctor was no one to fool with and just enough emotion to show the depth of what personifies the Doctor. To me he will always be my favorite Doctor.