Two quick things.
First, the more I see of Matt Smith and David Tennant together, the more I really wish the “two Doctors” series idea Matt pitched to Steven Moffat had come to pass. They have such brilliant chemistry together. They’re both goofy, but in entirely different (and complementary) ways.
And second, I would really love to see John Hurt’s Doctor again. It’s unfortunate, with the way “The Day of the Doctor” is set up and finishes, we could only ever see the broken and war-weary version of that Doctor. John Hurt is just grand.