Do you have a favorite of the ones you've used? I like buying a roll rather than a package - it seems less wrinkled, but I haven't decided on a favorite yet. The cotton poly I used in the last one was nice, but today's all poly is looking good, too. It came off a roll and seems more even and less wrinkled than similar packages. Choices, choices. I am not a fan of the feel of Warm and Natural. I may be the alone on that one.
The cotton/poly was easier to sandwich and easier to FMQ for me, but I like the slight puff of the all poly. I do not quilt heavily.