I've never entered anything but have been told some of these groups can be quite cliquish. This from a top name quilter now retired. Have heard this also about a fabulous Garden Competition here. Having said that I have to admit a couple of the girls I use to attend a class with entered quilts in a country show and went quite well. Several firsts and special mentions as well as people's choice.
I believe nice full bindings are of special interests to quilt judges.