Der fliegende Holländer
I am listening to Otto Klemperer's 1968 recording of Der fliegende Holländer, which is probably the best single recording of this opera. Klemperer is still Klemperer, and there isn't much emotion outside of that which the score and singers introduce. However, I think that Klemperer makes a case for Der fliegende Holländer being one of Wagner's best operas. He did return to the love-saves-all motif time and time again. The musical language is far more traditional in Der fliegende Holländer, but that doesn't much diminish it.
Just a thought as I do other things.