The Blade show occurs every year in Atlanta in Junish. Blade West was held in Ontario, CA the last 2 years in Sept.
Blade - Atlanta --> Probably the biggest and best in the U.S.
Blade West --> You won't miss much. I did last September's show in 2 hours and I walked around several times. A lot of knifemakers from east of the Mississippi and north of Sacramento don't attend. Rob Simonich, when he was still around in 2003, told me California was too weird for him. Of course, many others feel the same way. Can't blame them. So if you want to see many of the best, go to Atlanta.