I really liked "Breakfast at Tiffany's". There are some big differences between the novella and the movie, but they are all for the better. I wish the studio had the guts (and the legal ability) to touch some of the subjects the book dwells on, but alas, the early '60s in Hollywood were much more conservative than Capote was in the '50s.
The two short stories that followed the novella, "House of Leaves" and "A Diamond Guitar" didn't seem as accomplished to me, but the last one "A Christmas Memory" really hit it out of the park. Maybe because it was somewhat autobiographical, it really got under my skin.