I wore Black Cashmere exclusively for years. (and then I discovered BPAL. But I still wear BC on occasion.)
My absolute favorite BPAL so far? Dee. Spicy incense and woods, and a hint of sweetness from the tonka. Heaven.
I agree with the Scherezade and Morocco and Sin recommendations -- in fact, I love to wear Scherezade layered with Sin. Snake Oil is also nice layered with Sin, or lovely just on its own. I guess I like layering Sin -- the sandalwood and patchouli -- with spicy scents that don't have a woody complement. (Which seems like a direct connection to the BC notes...) Sin on its own is slighly spicy as well.
I also like Bengal and Baghdad (spicy), Sri Lanka (incense and woods), and Fenris Wolf (woody). Limited Editions I love are Blood Moon and Red Phoenix.
And last but definitely not least, for a much darker, but deadly sexy feel, Hellfire. Incense and leather. Whew.
Have fun!