Some folks on other forums use DMC for the most part but like Anchor Black (403) since it seems to cover better than DMC. I have some Anchor black to try in my next project to see how I like it. 123stitch has Anchor if you ever order from them.
I ordered some Anchor with some over-dyes to try on a few smaller projects. I have a lot of DMC from years ago, so I will always use that to a degree. Please let me know what you think of the Anchor Black (403)
Ive always found DMC black to be a bit lacking in color.