Sunless Citadel...oh what fun the "dragonpriest" was.
Didnt run it but I liked Forge of Fury as well. After that, I thought the quality of WOTC modules dropped dramatically.
Not a psionics guy, but Of Sound Mind was fantastic. Never did get to run it unfortunately
Crucible of Freya, Abysthor, Rappan Athuk 1 , HOTRM from Necro.
First module of the Coin Trilogy from Kalamar (Root of All Evil)
Of all of them, I think COF was the most fun. By then I knew the rules a bit better, and the players did too. Plus COF scared them..none of that "you will find only balanced encounters" garbage, they managed to bumble around til they found the troll outside of town..bwhahaha. It just reminded me more of days gone by. Very easy to get your PCs killed if you played poorly.