Interesting you should include Parsifal— I rarely hear it mentioned among anyone's favorite operas, but it is my number 1. The music and the drama are equally absorbing, and it certainly has its share of big moments (for example, the Good Friday Music, which is sublime beyond description.)

Close behind would be Fidelio (Beethoven), Der Rosenkavalier (Strauss), Rusalka (Dvorak), Tales of Hoffmann (Offenbach), Akhnaten (Glass), Turandot (Puccini), Don Giovanni (Mozart), Der Ring des Nibelungen (Wagner), in no particular order….

–Marty Barrett