my favorites are first Eleanor Burns she got me started with quilting and I love to teach her patterns. then comes Bonnie Hunter and Edyta Sitar just had her at our guild she is wonderful and her quilts are wonderful want to make them all. Edyta is so much fun and so nice so uses scraps too and big on exchanges.
also favorite for PP is Carol Doak the queen of paper piecing before I took a class from her didn't care that much for PP but now I love it..