Scale of 1-10
Leather and other materials quality GWL 10, ELC 9, BK 8
Durability All 10
Craftsmanship GWL 10, ELC 8, BK 7.5
Patterns/fit and Reproduction Accuracy (almost the same to me) GWL 10, ELC 5, BK 7
The above is merely my opinion, based on having owned 6+ GWL, 3 ELC, and 1 BK A-2...