I have a longarm and I like Warm & Natural cotton or wool for most, but I like the higher loft of Quilter's Dream Poly when I am looking for more definition of my quilting or to do trapunto with. I love the drape and hand of Quilter's Dream Bamboo/Silk blend, but it is expensive. I have found that when I use wool batting, I like to pre-shrink it because I pre-wash all my fabric and the wool actually shrinks a bit more then the cotton batting. I actually prefer any of the Quilter's Dream battings to any other brand, but that is just personal preference.