Ask me what my favorite episodes are in the previous seasons and, yes, you will see the pattern.
Trying not to be a snob, but, 12 episodes into the 13 episode Doctor Who season, I'm bursting to say it: I like the Steven Moffat-written episodes way, WAY better than all the rest of this season's. I have multitasked my way through every one of the non-Moffat eps, bored at the pacing, at my lack of investment in the story. (Okay, The Vampires of Venice did have Helen McCrory, which may have curtailed my multitasking some.)
The twists in the latest episode are so deliciously twisty I'm aroused. Don't leave me, Moffat.