I like Hobbs Heirloom or Quilter's Dream the best. W&N is too stiff if it's quilted very close.
I use the QD poly for quilts that I want to have a more modern look after they're washed since it doesn't shrink.
The Hobbs has just the tiniest bit of loft to it and gives your quilting some nice definition. If I want a flatter look I use the QD cotton.