I personally prefer the 6 pieces, for 2 reasons. First is that it's easier to put together the 6 triangles than to put together 8 pieces plus corners. Second is that when I look at the ones made with 8 pieces, I often see the vertical and horizontal lines running through the quilt, whereas those don't exist with the ones made from 6 pieces. With the OBW, I don't look for the kaleidoscope look of individual blocks so much as I look at the overall effect and marvel at how the original fabric has changed.