What's better? RRL denim or the denim they sell at Self Edge like Iron Heart, Flat Head and others? They both seem similar in quality when I briefly viewed them...
Thats like asking whats better, a RRL button up flannel or all of the 100 different brands and styles and cuts they sell at Barneys. Wayyyyy too broad a question.
They are all great jeans, go try em all on and choose the one you like best. All of those are made of Japanese denim. The RRL's can advertise they were made in the USA, but that doesn't mean their construction is "superior" just made somewhere else. This question is too broad.