I was a huge Doctor fan mostly starting from Chris Eccleston up to Matt Smith. Also enjoyed the offerings of Paul McGann... even in that movie. For older doctors... actually liked Colin Baker but think he was given a bad deal with the clownish outfit they gave him and most of the scripts.
Peter Capaldi is a good actor... just didn't appreciate his doctor and most of his companions. Haven't even watched through the entire dvd's of his seasons.
When I heard about a female cast as The Doctor... wasn't excited or impressed. However after watching the trailer I will give her a chance. Youth and exuberance may be the ticket to get this franchise rolling in a better direction again.
David Tennant's version is my absolute favorite. He needs to be regenerated yet again. Companion Rose I can do without.