I would have to say Quilt Incs show in Houston TX it is the Biggest and Best in My Opinion! I have been to Houston for the quilt show since 2005. I am headed back this year! I love it because it has many, many quilt exhibits. It also has learning stations, lectures, international teachers and more vendors of products used for quilting in one venue than you can believe. I also love Lancaster for it's own charm. If I could only go to one it would be Houston.
Luann in CT