Upvote to Ursula K. LeGuin. That A Wizard of Earthsea wasn’t on the original Appendix N was practically a criminal oversight.
Downvote to Mervyn Peake. The Creaky Gothic Gormenghast trilogy is good, but there are plenty of other authors on this list I’d read before it.
As for Brooks’ loss, I didn’t vote one way or another on them. Like the Dragonlance trilogies, which I came to at the same time in my life, I had too much nostalgia tied to them to be objective about them. I know they’re flawed works, but I still liked them. Heck, I even enjoyed the Shannara Chronicles TV show.
Alexander, Lloyd 24
Augusta, Lady Gregory 19
Bear, Elizabeth 15
Bulfinch, Thomas 23
Cook, Glen 21
Froud, Brian & Alan Lee 7
Hodgson, William Hope 16
Jemisin, N.K. 22
Kay, Guy Gavriel 21
LeGuin, Ursula 26
Lynch, Scott 24
McKillip, Patricia 25
Peake, Mervyn 22
Pratchett, Terry 23
Sanderson, Brandon 25
Smith, Clark Ashton 18
Wolfe, Gene 24