Only a few sopranos have sung all three, very different leads. The ones I know about are Renata Scotto and Teresa Stratas, at the Met, and Beverly Sills - bet you weren't expecting that name - at NYCO. If you know of others, please tell me.
Along with those three towering singers are the three who originated the roles at the Met premiere of Trittico in 1918: Claudia Muzio was the first Giorgetta, Geraldine Farrar the first Suor Angelica, and Florence Easton the first Lauretta.
As I told Racette a couple of weeks ago during our talk, the dramatic intensity of her last Butterfly here killed me. The Trittico soprano leads are a tour-de-force of a different kind. From the looks of the video preview at the Trittico page at SF Opera, I think she might be about to do it again.