The Houston show takes place entirely in one building. One really
BIG building!!
Lots of great classes, lectures, seminars, events, shopping, and more quilts than you can see in two days! It's great!!
The Paducah show is spread all over the entire town, and there are quilts and classes and vendors in several locations. The town really supports the events and you can get some interesting meal options offered by the local churches and civic organizations. You also have the fabulous National Quilt Museum right there in town.
http://www.quiltmuseum.org/
I have been to both venues a couple of times, and would be hard pressed to choose one over the other. No matter where you decide to go, wear comfortable shoes!
You're gonna have a wonderful time!