I like Hobbs 80/20 for most quilts
I love Hobbs all Cotton Supreme as it's great loft and so soft--but little pricey and I always end up with fuzzies on me.
I would use Hobbs washable wool on everything if I could afford it! I often use 80/20 and washable wool if wanting a double bat to show the quilting
for poly, which I will use on kids quilts (not baby quilts due to flamability) or others that will get lots of washing but also want more loft than Hobbs 80/20 I prefer Quilters Dream poly.