The black/white Fullcount 0105BK are my favorite jeans at the moment. The fabric has a great drape and the fit is nice and roomy. I like them even better than my indigo Fullcount 0105.
I also have a pair of black/black TCB S40s. I found the deep black of black/black fabric to be surprisingly less versatile than the dark gray-ish of black/white fabric. I also prefer the more subtle fades of black/white.