Hmmm, it will be interesting to see what others think of this episode. For me this was both the best of Gatiss' four episodes and also the best episode of Moffat's period as showrunner. It was excellently acted all round and had a great mix of suspense, horror and emotion. I feel Gatiss' love of Hammer really shone through and gave the episode a distinctive Retro British feel.

Ultimately however this episode reminded me of what has been missing sine Moffat took over. Soul. Moffat simply doesn't do emotion as well as Davis. This can most easily be seen by comparing A Good Man Goes to War and The Parting of the Ways (the final episode of the first Davis season). In both episodes The Doctor goes through a very similar emotional journey giving in to his anger and more violent side before rejecting it and choosing the way and principles of peace. The point is that in A Good Man Goes to War I never felt it. According to River Song it was meant to be The Doctor's Highest High followed by his lowest low, to me it felt it went from being arrogant to kind of annoyed. In the parting of the ways we saw The Doctor finally leave behind the darkness of The Time War and violence (best seen in Dalek )and return to his principles,

Emperor Dalek: Then prove yourself, Doctor. What are you, coward or killer?
The Doctor: Coward, any day.

It felt honest and joyous, it was a moment of victory for The Doctor, a self realisation. Compared to A Good Man Goes to War were the realisation rings hallow and is in fact a moment of defeat, a lecture delivered half heatedly by River Song soon brushed aside and forgotten by The Doctor as he realises who River is.

I agree with others that Davis at times let the emotional element go too far (as with the whole Rose loves the Doctor plot) and that Moffat is overall a better plotter than Davies. But when it comes to Doctor Who, give me the choice between complex plots and soul, well for me it's Soul, any day.