It took a while but I finally made it through the HorrorBabble catalog. Not bad. Some classics, some hidden gems, and a lot of old fashioned stories that I couldn't really get into, but that's the nature of the beast. The two readers are both pretty solid. It's hard for one (or two) readers to sound "right" when reading this wide a variety of stories but they do a commendable job.
My favorite episodes in no particular order:
Tier one:
(best of the best)
The Opener of the Way - Robert Bloch (June 14, 2021)
The Shadow Over Innsmouth - H. P. Lovecraft (Jan 4, 2017)
The Thing on the Doorstep - H. P. Lovecraft (April 9, 2018)
The Vaults of Yoh-Vombis - Clark Ashton Smith (Mar 22, 2021)
Horror in the Hold - Frank Belknap Long (Mar 11, 2020)
Stranger at Dusk - Malcolm Kenneth Murchie (February 8, 2021)
The Black Cat - Edgar Allan Poe (Feb 9, 2018)
The Interlopers - Saki (Jun 19, 2019)
The Mandarin's Canaries - Robert Bloch (Oct 14, 2020)
The Rats in the Walls - H. P. Lovecraft (May 15, 2017)
The Red God Laughed - Thorp McClusky (January 23, 2019)
The Rose-Colored Glasses - Thomas Kent West (May 23, 2018)
There is a Reaper - Charles V. De Vet (Apr 10, 2019)
To Build a Fire - Jack London (June 4, 2018)
Uneasy Lie the Drowned - Donald Wandrei (January 19, 2021)
Tier two:
(good but not great)
The Black Stone - Robert E. Howard (Jun 24, 2019)
Notebook Found in a Deserted House - Robert Bloch (Sep 10, 2018)
The Tree-Men of M'Bwa by Donald Wandrei (Oct 28, 2019)
The Horror in the Lighthouse - Edgar Allan Poe and Robert Bloch (January 18, 2021)
When the Flame-Flowers Blossomed - Leslie F. Stone (May 12, 2021)
The Secret of Kralitz - Henry Kuttner (June 22, 2020)
A Christmas Carol - Charles Dickens (December 25, 2017)
Ye Goode Olde Ghoste Storie - William A. P. White (Oct 29, 2019) (this one works best if you've already read a few dozen hoary, clichéd, old ghost stories.)
Tier Three:
(Good stories but I've heard better versions)
The Raven (The Basil Rathbone reading is unbeatable)
The Open Window
Tell-Tale Heart (Ian Stuart's reading for Cast of Wonders is excellent. James Mason's version is also good.)
The Voice in the Night (Pseudopod and Tales of Terror both have good version of this story.)
An Occurrence at Owl Creek Bridge (I like the Suspense/Escape versions best)
The Cask of Amontillado (Vincent Price's one man show version is the best)
The Yellow Wallpaper (Agnes Moorhead's dramatic performance of this story is the best)
The Masque of the Red Death
The Monkey's Paw (I like Nightfall's version best)
Final thoughts: I wasn't a fan of M.R. James, Algernon Blackwood, and William Hope Hodgson before starting this show and I'm still not. I just find their stuff dull for the most part. I do have a new interest in reading more of Robert Bloch's stories and I'd also like to check out more stuff by Donald Wandrei who I'd never heard of before.
Almost all of the readings are available for free on Youtube.