Glad it was useful to you!
I have half a dozen nominees on my to-read pile (I'll get to them some day), but of the entire list, I've only read I'm Afraid You've Got Dragons (ok, but no The Last Unicorn) and The Butcher of the Forest (great overall, imo).
for instance, I don't generally enjoy alternate histories, and it bugs me that they're considered SF
Alternate histories seems like one of those oddball sub-genres that has to go somewhere; I guess I would maybe call them spec fic, if they're not otherwise sci-fi or fantasy? But it seems like they lumped spec fic into the sci-fi category, which seems reasonable.
It's about 300 pages, so not bad at all.