Let me give you my perspective.
I am not an AR guy. Don't own one, don't want one. In fact, this is my first time to even look, much less post in this particular forum.
Nor do I know the differences between one brand or another, features, mods or whatever else is involved with an AR type rifle.
However, I do know Springfield Armory. I own a couple of M1As and several 1911s. I know their quality and I know their customer service is the best.
So if, and that's a big IF I were to buy an AR, I'd buy a Saint and never look back.