South Texas = Summer Quilts. I have made many of these - pieced top and regular backing. Doesn't require as much quilting since you don't have to worry about the batting staying in place in the wash. They are also a bit more portable - foldable - I have them in the van - one under the front seat (there's a drawer there) and one in the pocket behind each front seat. My grandboys love them.
Also made nap quilts with no batting for those grandboys to have at pre-school. (The nap set in my avatar is a summer quilt.)
Of course, I also make quilts with batting - just depends on to whom and where they're going.