Well that was just Fantastic!
I'll admit that as we watched the Battle of Gallifrey become just another – admittedly epic looking – sci-fi battle I started to worry. That isn't what Doctor Who is. Then John Hurt was in a desert, talking to Bad Wolf Rose, being given the choice to destroy his people and the Daleks or not, and the only way to make that decision was to meet his future selves. Finally we were on the right track.
The Man Who Regrets and The Man Who Forgets. A brilliant way of describing Tennant and Smith's Doctors. But it didn't stop there. Hurt's old man Doctor just kept picking apart the differences between Old and New Whos. Calling them companions due to their age, wondering why they wave their screwdrivers at everything. The banter between the three was fantastic, especially between Smith and Tennant which immediately brought to mind the same repartee that Pertwee and Troughton had, which is the perfect Doctor relationship to model it after. Both Doctors were on the top of their game.