i did go to one amish quilt show - so, those were all hand quilted and absolutely beautiful!!!
The other 2 shows that i went to in Sept had more machine quilted quilts. Most of the quilting was just a wandering type of quilting. Although, I did see a couple machine quilted quilts that were absolutely beautiful - there was attention paid to the blocks, and the design of the quilt.
The ones that were handquilted were older/vintage quilts. Very few new hand quilted ones. I prefer hand quilted, patch-work, more vintage looking quilts.