If you're looking for a bombproof AR for general purpose, home defense, SHTF, etc., a Colt LE6920 is what you want, and it's not even debatable.
If it's solely for plinking, there's a certain logic to getting something dirt cheap like Anderson or PSA, but I wouldn't recommend anything in that category if you think you might use it as a house gun at some point.
Pretty much. Much ado is made about any number of things, but it's mostly just noise created by marketing departments to resell the same mousetrap in 31 different flavors, often to the detriment of its basic functions.
Once you wade through all the fluff, the best option for 99% of people becomes obvious.
<yawn>
Yeah, you're right man, nothing else is dependable but a Colt. So glad you're here to finally settle the debate once and for all. How lucky are we?