That is a good list. I had read 37 of them, and many of those books are among my all-time favorite books. (Then there are the ones I read for a class, that don't thrill me.) Most of the ones I haven't read are actually on our bookshelves, and I would guess my husband has read at least 80 of those titles.
I thought it was odd that there were two Discworld books listed separately, but Amber and Xanth had one listing each. And I wonder why Small Gods and Going Postal in particular? I think I'd have picked Jingo and Night Watch.
I remember loving Stranger in a Strange Land when I was in high school and college. Jubal was just so cool. I reread it a couple of years ago, and my tastes must have changed, because I found him annoying instead of cool. The book definitely belongs on the "Best" list, though.
EDIT: Oh, and where was H. Beam Piper?
