I always machine-quilt baby quilts as I want them to be able to be machine-washable so the moms aren't afraid to use them.
Some of the wedding quilts were hand-quilted, some were actually hand-pieced or hand-appliqued. They all are about wall-hanging or lap size. The technique depends on how well I know the couple. I recently made a quilt for a friend of my daughter's. As I haven't met the girl and I only had about a week to make it, the quilt was all machine-done. It's crooked in the picture (and the pic is actually upside-down) but the quilt was very square as I had paper-pieced the blocks.
