My favorite is Tuscany wool and Tuscany silk if I'm fmqing. I use Hobbs 80/20 for big utility quilts. I have a bolt of Warm and Natural to use for projects and wallhangings. I like to try different battings and buy a package of new to me types to try. If a LA is quilting my quilt I always ask what batting will be used and ask for a sample. There are many good battings available. Fairfield traditional is one I started with and still use from time to time.