I have liked most of this season:
My Struggle (p1): 5/10 - see below.
Founder's Mutation: 7/10 - average monster-of-the week stuff with some tie-in to conspiracy stuff and good character stuff regarding William.
Mulder and Scully Meet the Were-Monster: 9/10 - funny, entertaining, if not quite as good as the best original series stuff (Clive, Jose Chung, Bad Blood).
Home Again: 8/10 - decent monster (thought less scary that it should have been) and good stuff with the Scullys.
Babylon: 8/10 - fun with Mulder and the shrooms, good message about failures to communicate, to understand others' point of view, and the power of words.
I didn't like the way My Struggle made Mulder flip flop on everything he believed in with little evidence (like Redux without the cool alien body and Kritschgau), and didn't like the underuse/undercommenting about a functional ARV that Mulder got to touch, and the dialog/acting were stilted. It felt like Mulder and Scully were talking past each other a lot and not in a "the characters are approaching this from different points of view and just can't get on the same page sort of way" but instead in a "this dialog is supposed to be powerful but fails" way. The transcript of the dialog comes off better, but that doesn't help the episode much.
Here's to hoping My Struggle part 2 cleans and fixes some stuff up and sends us off on a good note. I am interested to see the fates of Miller and Einstein in that I can see them being killed off in the season finale. They are too-on-the-nose copies of Mulder and Scully for them to be seriously considered for series replacements (maybe in a comic book or something, but not on TV).