I like Hobbs 80/20 for most of my quilts but it depends on what or who the quilt is for. Baby and kid quilts get a good poly batting, they will be washed and dried hundreds of times.
I love my winter couch quilt that has a low loft poly batting, so soft, comfy and lightweight when I wrap it around me while watching TV. One of my bed quilts has warm and natural and I find it feels heavy when sleeping under it but it is warm. May in Jersey