You can certainly piece and quilt with the thread you won. However, if you'd rather not, then my choice of the other two would be Aurifil. It's so smooth and leaves almost no lint behind. Since it's pricy, I consider it a treat rather than a staple. So if I were to "win" something, I'd love Aurifil thread. But again, if you don't want the hassle of sellng the embroidery thread, keep it and play around with the effects for fun.