In spite of what the gurus in the gun mags recommend, I too ream primer pockets, purely for uniformitys sake. I also deburr flash holes in brass destined for serious use. My primer pocket uniformer is one of the now defunct "Whitetail Specialties" hand held carbide models.
My favorite "all-around" brass cases come from Winchester. I've tossed too many Federal cases in the scrap bucket because of enlarged primer pockets, and suspect that there's more than one reason that Federal crimps primers in Gold Medal match brass, and any "serious use" applications. My guess is that they want their brass to be on the soft side, perhaps for obturation concerns, and that they're not terribly concerned about case reusability. Just a guess. RP has been okay for rifle cases for me, but will never rise above Winchester. I haven't tried the uber-expensive imported brass yet.