In an ideal world (ie, MY little bubble) I would keep Tennant as The Doctor, but I respect his decision to leave, even though I am totally gutted, I am not going to deny it.

As for who I would have as The Doctor, well I was hoping for David Morrisey, but the Christmas special kinda screwed that.  John Simm, but him playing The Master screwed that.  Anthony Stewart Head was another person I quite fancied as The Doctor, would have quite liked an older Doctor for a change, but c'est la vie.

Just PLEASE PLEASE PLEASE PLEASE PLEASE do not give Rachel Stevens the part  of Companion- I really would give up all hope if that was to happen.