While I'm not as "up on" AR's as Mercy (little doubt that many are really, dang kid is a genius with them) from a business standpoint on assessing value to a product, DPMS and Bushmaster would hold a higher value since they make their own parts while Del-Ton is merely an assembly plant. Also, in my own lightly educated opinion, DPMS and Bushmaster both have a finer finishing than the Del-Tons I looked at when getting my first AR. And I looked at, shouldered, test fired, and went over quite a few different brands from Del-Ton, DPMS, Bushmaster, LaRue, Novesky, Daniel Defense, just to name a few that I tried out.