For the next doctor... Ben Whishaw or Damien Molony.
I see a disturbing amount of Moffat-hatred in this thread, as I flicked through it. I will now make all of you hate me by saying that 5 and 6 were by far the best series of the new series (though I don't know what he was doing in the 2nd half of 7. Apart from the finale, it was just bad, bad television). Davies wasn't complex enough and his own writing was lacklustre. He wasn't a bad showrunner, but Moffat was better (until series 7, at least).