I love picking out the fabrics, but not putting away the rejects after I've dragged out dozens to choose from. LOL
Next I love piecing the blocks, then sewing them into the flimsy.
Least favorite is pinning the layers because it plays heck with my back and takes me a day or two to recover. Next least favorite is the quilting because I do it on my DSM and it can be difficult and painful to manhandle the quilt during that part.