TOD (way too many, but what the hell):
Ariadne auf Naxos
Elektra
Salome
Don Giovanni
Falstaff
Turandot
La Boheme
Tales of Hoffman
Der Ring des Nibelungen - in general, some parts more than others
Porgy and Bess
Rise and Fall of the City of Mahagonny
Street Scene
The Rake's Progress
Wozzeck
Lulu
Albert Herring
Amahl and the Night Visitors
Turn of the Screw
The Crucible - honorable mention as a newcomer