I didn't particularly care for Breakfast at Tiffany's and I definitely prefer the 1995 version of Sabrina to the original. I did enjoy Roman Holiday a lot and I actually really liked My Fair Lady - because it was witty/funny, not really because I'm some kind of Audrey fanatic.
I just watched Funny Face for dinner and was struck by how modern it was. I could see where movies like Down With Love got their inspiration and I thought it was an interesting commentary on the world of haute couture. Not to mention that I can't get over just how good Audrey and Fred Astaire really were at singing/dancing. True all-around entertainers they were.
Anyway it's still a stretch for me to buy someone like Audrey Hepburn as a mousy chick who needs to get made over into a swan. I wish more people who made Pygmalion-type movies would pick someone who looks really crazy in the beginning and does a total 180, like the main character in Baz Luhrmann's Strictly Ballroom - you can hardly believe it was the same actress from beginning to end.