Your quit is beautiful!
Try a small quilt sandwich matching fabric and batting types. Then try the different needles and check the results. Write the needle size/type on the sandwich sample for later reference. Each project is different and the results can vary. The Topstitch 90/14 have been recommended by some quilters.
Yes, needles can be so confusing. I've been using the microtex for machine EMB with good results. They go through the thick layers and no problems. I only worry or change needle type size if there are issues with breaking threads.
Hope that helps!