Maybe it was just me not trying hard enough at the time (a decade+ ago); I wanted to read LHoD but couldn't get my hands on it. I know it's now available as an ebook more easily, but I remain a bit peeved about how it was the one thing I couldn't buy legitimately at the time.
That combined with not enjoying Earthsea (I read two or three books?), makes me biased to keep reading any online recommendations but Le Guin.
I didn't like the first Earthsea novel and haven't read any others. I suspect it's a book that tends to work better for young readers, or older readers nostalgic for things they read in their youth.
It's not perfect, but I think where the other books are interesting but simple stories for children, Tehanu feels like it was written for those children as they've grown up - it's basically (without spoiling too much) the retirement and twilight years of characters from the rest of the series. And as a result, it feels like a more applicable or relevant story.
It's currently available in paperback.
On the other hand I was very disappointed from 'A Wizard Of Heartsea'.