Most of the stuff that was on the ballads and blues album was great.
I love hearing the girls singing in harmony.
Same with the alternate takes from CW&P, with Mary and Flo only backing Diane.

One of my all time favourites is "[[Let Me Hear You Say) I Love You"
I love the dramatic and the power in each girls voice, especially Flo's.

The alternate takes of Nothing But Heartaches and He's All I Got are great too, in my opinion.