Originally Posted by
QM
IMHO, the issue is what sort of quilting do you want to do. Unsashed, you have a lovely space for focused quilting, such as a floral motif. (or space for embroidery or applique). If you don't want to do those, sashed is probably a better idea.
This was exactly what I thought. If you want to show off some quilting in those white spaces, go without sashings. If not, then the sashing gets my vote.