Best budget first AR?

Anderson manufacturing, Del-Ton, Radical, and Diamondback seem to be the most popular "budget" AR's on the market. Is one better than the other? I understand that for a couple hundred more, and person could get a S&W, Ruger, or even a GLFA all in the same price range, however is it a better idea to spend that extra $200+ more if intentions are to upgrade components anyways?