I've always thought Matt was fab but man didn't he step it up a gear in The Impossible Astronaut - absolutely amazing. Even when he wasn't saying anything. I love the shifty, uncomfortable body language when he first walks off the TARDIS & realises where he is & then the simple hand gesture to carry on talking when the President spots him. And the delivery of his lines is spot on every time.
Perfect. My Doctor. And I hope he sticks around for a while yet