Hi. Long time TWoP lurker here. I'll probably lurk more than I post.
I saw my first episode on PBS in 1970. The station showed Pertwee but then I don't remember seeing another Doctor until they started showing Tom Baker. I also saw 5 and 6. I've watched as many of the classic shows as possible but I know I still have some holes in my classic viewing.
I love all the Doctors. I miss them when they leave and take a minute to get used to the next one before I love him too. My favorite is whichever one is on my screen at the moment because there is only one Doctor. I know that many people have strong preferences for one Doctor over another (or companions, showrunner, etc.) which is cool but I really hope these threads don't digress into what I've seen at some Who sites- the fans of X in the majority on that site bully everyone else into leaving.