I just used Magnifico on a quilt and really liked it, too. I also tried some Superior Twist on a stonehenge quilt and loved the look. Its also a strong thread with no breakage. My favorite is still Glide, which to me gives a more even (or dense) look to the stitching. I guess what I mean is as it comes off the cone, it is more smooth in texture than either Magnifico or Sigma. Magnifico and Sigma are similar in appearance both on the cone and on the quilt. For a thread with shine, any of the above are really nice. To me, it just comes down to which one is the best color for the project since they all perform about the same.