My experience has been mainly Craftsman, and I don't think that the quality is worth the price. I have had too many tools break on me. I also had a craftsman air compressor konk out on me and it was a big pain in the ass to fix a small part.
I have tried Ryobi drills and powersaws, but that is the extent. My opinion now is that I would buy Ryobi before Craftsman.