Hi-quality brass...
Furtaker--The 3 you mention are the "top of the line" in rifle brass. They come all the same length, with the case mouths chamfered in & out, and the flash holes are drilled, not punched, so there is nothing to clean up (punching the flash hole leaves a "chadd" of brass on the inside of the case; some feel that this interferes with the flame of the primer getting to & igniting the powder evenly--OTOH drilling the flash hole leaves just a nice round hole, inside the case and outside.)
The brass is high grade, of uniform hardness, capable of being resized many times before fatigueing--You get the picture. It costs more but it lasts longer, and you don't have to do anything to the cases before loading them. Probably the necks are straighter, too, but have no data on that.
For a "knocking-around" rifle the added cost probably doesn't add any benefit. For a "serious" rifle, starting with high-grade brass is the start to obtaining the best accuracy you can wring out of that rifle.
I use Norma or Lapua in my "target-grade" rifles. (No experience yet with the Nosler brass.) Mostly Winchester or Remington or Federal brass in my less-than-target-grade rifles. Whatever I can get my hands on in my SKS.