Best Episode of Season 9?

[Tea Lady]

A little tricky as there was not one episode that I hated (as opposed to series 8) and I liked probably the first four episodes equally. Anyway:

1 - 9.1
2 - 9.6
3 - 9.3
4 - 9.7
5 - 9.2
6 - 9.8
7 - 9.4
8 - 9.5