I know my old Singers, like cotton thread and they don't like gutterman! They are like people, they have their likes and dislikes.
As far as material, yes I like 100% cotton with cotton thread, polyester material has it's place also. They are just about the warmest quilts and are best tied instead of quilted in MHO. I have poly material that no one else wanted and I plan to make a few quilts. Also, lap quilts for the nursing home, they just never wear out. So there is a place for everything if used correctly.