I see three options here:
1. They are the same.
2. National Society of High School Scholars is better than the National Honors Society because it is so elite I have never heard of it.
3. The National Society of High School Scholars is sub-par and I know this because I have never heard of it.
I know none of that helps, but it needed to be stated. And I am ignoring the fact that it may be new so I haven't heard of it b/c I am ignoring it.