To be honest, I would not recommend using fusible batting except possibly on crib quilts. It can be very difficult to apply to large quilts and is very unforgiving if you make a mistake. Basting spray is much more forgiving (I use 505).
I like the softness that comes with batting that shrinks 3-5%. Recently I've been using mostly Hobbs 80/20, but when that runs out I am going to try Quilters Dream cotton. After visiting a recent quilt show, I am realizing that I prefer a flatter batting for machine quilting.