Funny, my favorite part is whatever phase I am in at the time! I am in my happy place in every aspect of the quilting process, from selecting pattern and fabric to taking that final stitch on the label (but sometimes that point can be bittersweet, especially if the making has brought me a lot of joy). I sometimes burn out if the quilt was an exceptionally detailed longarming job so then I can't wait to get into piecing mode or starting a new quilt. I even love prewashing and ironing the new fabric, it is like getting to enjoy it all over again after buying it. I can't say I have a favorite part of the process because it changes with my mood and mind set. This is probably why I have so many UFO and WIPs. While some may sit for years, even decades I do return to them. Although now that I really think about it, I do really love sharing my finished project with other quilters and when a complex completed quilt turns out exactly like envisioned it.