Which comm. speaker mfgr. makes the best cabinet?

Rockport Technologies makes a decent molded cabinet out of .375" fiberglass on the outside, .375" fiberglass on the inside and then 2" of stuff that sets up similar to MDF between the two shells.....These are made in a boatyard in Maine.....

Boats and fiberglass speakers both use what is known as a "plug" and the guy that does the plugs for boats also does them for boats.....Bought my Rockports in 1992 so wonder if W-B was first or if Dave Wilson with the Watt beat both Rockport and W-B? Doesn't matter I guess except to those folks....Sure makes it easy to make complex shapes with walls that are not close to parallel.....