Before we get to the parent rankings, can I get a hell yeah! for the Natural Order of the Universe sort of being restored?
-Anyways, Hermione Lodge is Best Mom for helping Ronnie do an end run around Hiram (though I'm not sure why Ronnie didn't push for better terms; Hiram needs the Wyrm more than she needs Pop's), but I'm not actually sure who is Worst Mom; Penelope Blossom is objectively a worse person and a worse mother than Alice Cooper, but she doesn't really do anything objectionable Mom-wise in this episode, and arguably does something positive in trying to keep Cheryl away from the Wyrm during the raid, whereas Alice is a total mess who needs Betty to take care of her.
-Best Dad, of course, is Fred Andrews, though FP Jones, Jr. has some good moments. Again, I'm not sure who is Worst Dad; Hal Cooper is objectively a worse father than Hiram Lodge, but he only did a little bit of terrible Dad-ing this episode, whereas Hiram...well.
-Also, losing the Mayorship has been the best thing to happen to Sierra McCoy as a character; she's been consistently awesome since she left office.
-Also, also, I can't help but imagining Cheryl doing the Serpent Dance, does that make me a bad person?