I must have missed the original post on this thread so I'll make a
blind stab at answering it.
I exhibit at the Charlotte NC ACC show the second week of December
every year. The quality of metalsmiths exhibiting there is usually
pretty high, though I noticed that a couple of jewelers I hold in
very high esteem aren't going to be there this year. The show has
been slowly dropping off in terms of sales the last 2 years, though
before 2001 it was one of my best shows. Perhaps it will pick up
this year, who knows.
Do a google search for Artfair Sourcebook. On the site they have a
link for artists to make comments on shows. There you will find
listings by state of shows. It won't really give you a clear rating
of the show but at least you will be able to see a list of some of
the top 400 shows in the country.