OK all you comedic opera fans, which is your favorite comedic opera of all time

Question:

OK all you comedic opera fans, which is your favorite comedic opera of all time and why?

If you had to choose between Cosi Fan Tutti, Die Fledermaus, or Adriane auf Naxos which would you choose?

Best Answer - Chosen by Asker: I don't know the plots of those operas, but I love Gianni Schicci.
It's hilarious. Greedy relatives are mad that their uncle Gianni died and willed all of his money to the church. They decided to dress one of the cousins up as Gianni, put him in his "death bed" and invite a different lawyer over so that "Gianni" can rewrite his will to include the relatives. Well, long story short, the cousin gets on the death bed and rather than will it to everybody, he wills it all to himself.