Well, in Dungeon #116 (November, 2004) appeared the famous "30 Greatest D&D Adventures of All Time" - voted by the fans, IF I´m correct:
The Top 5
1) Queen of the Spiders, 1986 (G1-3, D1-3, Q1)
2) Ravenloft, 1983 (I6)
3) Tomb of Horrors, 1978 (S1)
4) The Temple of Elemental Evil, 1985 (T1-4)
5)...