@hightor,
To me? Most of his books in summary wouldn't appeal to me. But I loved each and everyone I've read so far.
Never Let Me Go is a great work of science fiction but the science is so far into the background, it's like wallpaper... hardly noticeable. Yet, it's still the foundation of the novel. This one had the best chance of appealing to me... which probably helped that it was his first book I read.
When We Were Orphans is an unorthodox mystery that transcended its coming of age in period Shanghai framework.
I'll get around to Remains of the Day but since it's relatively short, I won't get in on audiobook (as the other two I've read) and will likely get it in paperback.