#RPGaDAY Day 19, Favourite Published Adventure
I would almost have to say my favorite is I6: Ravenloft.
There is so much about that run counter to what everyone thought D&D was or should be, but it had a huge impact on the game and my games especially. I have ran it maybe half a dozen differ times over the years and I still enjoy it.
Of course I do have to mention my own published adventure for the Buffy the Vampire Slayer RPG, The Dark Druid.