The best black I have purchased so far is Michael Miller's Jet Black. It is darker and deeper than any other black I have tried. I have also worked with Kona black. The Kona has a much "meatier" hand to it that I don't like. It seems heavier than my quilting cottons and produced a lot of strings when I cut it into strips. I much prefer using Michael Miller's Jet Black, which seems to have a hand closer to that of my other quilting fabrics.