FINISHING it! LOL Really though, I love each stage as I'm in it, and start to get bored nearing the end of that stage...so when I get to the next stage, I get excited again. The only thing I really don't like is ironing the big pieces before cutting, and pressing the finished quilt top. I wish I could make a quilt without touching the iron...I never did enjoy ironing and only do it in normal life when I *absolutely have to*.
I guess what I love the most is when my plan on paper comes out in fabric how I expected or hoped it would.