The New Dr Who is to be announced in a live TV programme on Sunday 4th August at 7pm on BBC1.
Who was your favourite Dr Who? as the best tongue in cheek, eccentric & who hammed it up for all its worth I think Jon Pertwee would take some beating. 
See:- http://www.bbc.co.uk/news/entertainment-arts-23531724
See:-http://www.bbc.co.uk/programmes/b038rv5v