I love all things Quilter's Dream. They have a batting for almost any purpose a quilter would want. I like that I can count on the quality.
On which type I choose, I would have to say it depends on who or what it is going to be for. My first bed sized quilt, for me, has a Warm and Natural cotton batting. The quilt I am working on now for me has a Quilter's Dream wool batting. I want to have a softer, lighter, higher loft now. I liked how the cotton batt needled but the quilt is so heavy and cotton batting tends to be a little "dampy" in our mountain climate. Wool breathes great so it is good for summer and winter.
Most of the time I like the new microfiber bats, they can be machine washed and don't require a lot of quilting.