Are any of the brands better than the others? Especially those that I listed(Stag, DPMS, Bushy and Remington, etc.)? They all seem to be priced similarly.
The only one I have heard bad comments about is Olympic, but based on personal experience they are no worse or better than any other "name" brand.
I would avoid Armalite because so many of their parts are proprietary, not because of quality issues.