24. The Girl Who Waited
Something modern Doctor Who probably has over the Classic Series is that it's better at love stories. Revived Who has given us the Doctor and Rose, the Doctor and Reinette, Clara and Danny - and, king and queen of all of them, Amy and Rory, who's engagement and married life was one of the driving forces behind three years of the show. The Girl Who Waited, then, is dedicated to their relationship and must be one of the show's most romantic episodes ever. Karen Gillan also gets to show more of her acting chops by playing the older, embittered Amy of an alternate timeline - the tour-de-force of the episode coming when the younger Amy has to remind her older self how much she loves Rory. And there wasn't a dry eye in the house!