Evermeet was definitely an epic, more like a documentary which is always interesting.
If I had to choose a single book...I would have to say Homeland by Bob Salvatore. The way he captures every wicked detail of life in Menzoberranzan, in a truly evil society where the weak perish and only the strong and the treacherous survive is incredible.
If I had to choose a trilogy, I'd say the Avatar Trilogy.
But for AD&D trilogies nothing beats Weis and Hickman's epic Dragonlance works.
------------------
Memnoch - Custodian of the Order of the Holy Flame