For what it is worth, rryder, I use the Amish Black from Keepsake. Will be happy to hear your review of the other blacks you are trying.
When I purchase and store my black fabric, I keep it in zip-lock bags. Not all black fabrics are the same. Slightly different weight, color and texture. They may all be black, but they will not be the same and do not look the same in a quilt. The Amish Black comes in a zip-lock type bag and it lives there, even the scraps live in that bag. The bag also keeps the little fuzzy bunnies and threads from other fabric from collecting on my beautiful black.