Elegon in blues was hard for us the first week. We literally laughed at Will when we got to him after Elegon. Empress for me felt satisfying, the boss being very frustrating and hard as a healer, but also a "i wanna go again" feeling. Sha was brutal on platforms for me, but once I got the hang of that it wasnt hard at all, since our dps seems good.
So overall Elegon-> Empress -> Garalon