As many have said, your choice of batting depends on how you want your finished product to handle. I use 1/4" poly for all my lap quilts, as it drapes nicely and keeps a body warm. I use all-cotton for table runners, bowl huggies or placemats, as it has more body and protection. A wall or bed quilt can be quilted heavily and look wonderful, but I do not find this to my liking for personal coverings. For a baby quilt I also use poly, so it is soft.