Working (mostly) backwards...
I think this thing I wrote about Castro is pretty good.
My series in response to Trump's election - here, here, here, and here - was interesting to write, and will continue in the new year.
I wrote about Starship Troopers in such a way that an actual member of the alt-Right turned up in the comments to say I'd caught their views pretty well.
I started a new series about storytelling itself (which I will continue at some point - I promise). Here.
I wrote a three part series about horror movies - 'Psychic Landscape' - here, here, and here. This may also continue at some point, though its original purpose is fulfilled.
'Tricky Dicky' continued, and I was especially pleased with Parts 4 and 5.
TD and PL also crossed over with a mini-trilogy of 'Margaret on the...' posts, which can be found here, here, and here. I think those are quite good.
The pieces I wrote on the Coen Bros. films Fargo and A Simple Man went down quite well.
And I started the year with a trilogy of posts about Star Wars. Episodes I, II, & III.
I did lots of Shabcasts I was pleased with this year, owing to the excellence of my guests, but my favourite was the one I did with Shana on The Dark Crystal and Labyrinth - here.
My, I have been a busy bee. That Sandifer is a slave-driver.
Oh, and I also co-started a brand-new podcast with some friends, called Wrong With Authority.