As you already know GGG there's lots of printed stuff on the net suggesting why some brass is preferred over others. From my own limited reloading experience (the OCD on brass occurs regardless of colour) the Federal brass has more variability...and not just in the neck. Hardness, web thickness and the list goes on and on. Can't speak to Hornady, Nosler, or "Remchester" as Big Ed termed them I believe.
Don't know if you'll believe me but there are more markings I've noticed with the naked eye on the case body after sizing operations and near the base...with no rhyme or reason which gives me the jeebee's about what's going on that I can't see with Federal cases. After having neck failures I've got cold feet and watching for evidence to suggest that other brands have the same problems and I haven't found that yet.
Boiling it all down I'm just following Jerry's advice with PRVI (and Lapua to keep rifle head stamps separate for other rifles.)
What really gets me pi$$ed is after all the PITA OCD work as you have mentioned is that there better be cases that have some life. Our time is more valuable GGG...that's how I see it.
If the "better" brass can increase the probability of concentric ammo then I'm in. (returning to topic somewhat

)
Regards
Ronr