I use YLI silk thread set in the neutral colors. It disappears in the fabric. I have the Superior Donut too but seldom use that thread for applique after using the silk thread first and knowing how wonderful it is. I need to find out if Superior has the silk thread in a bobbin donut. I have used Aurifil because I have a lot of it bought on clearance. Any thread that has a quilters's name on it will be their favorite thread to use so I don't go by that in choosing thread. I used Glide thread for hand stitching binding on my last quilt and I really like it for handsewing.