I prefer Winchester military brass for my autoloading pistols and Federal for my revolvers. I do have a large variety of brass for my autos, a lot of which will never get reloaded by me, CBC is among those. The rest is all mixed together unless it's WCC mil brass. That stuff is for competition only. Probably just in my head, but I don't get flyers or any other issues, the cases don't fail randomly, and they last a very long time.
Lake City is my number one for AR15's and AR10's. There is definitely a difference in accuracy and my ARs LOVE Lake City brass.
Bolt action rifles are kinda all over the place. I do segregate all that brass. Depending on the type of shooting the rifle does, hunting, varmint, long range target, a couple rifles only have 20 cases each for their 'magic load'.
My $0.02