I personally have about eighteen hundred W.W. .38 Spl. cases that I bought from the Game Comission at least 25 Years ago. I couldn't even begin to guess how many times they've been re-cycled, possibly hundreds. I load for Myself, & two Sons-in-law, so they've been around. Like has been said, I use'm till they crack.
I much prefer W.W. cases for the pistols & revolvers, but for the rifles, Remington cases seem to hold up a lot better, at least for Me. Especially in the smaller bores, like 6mm, .243, & .22/250. In rifle cases, You also want to watch for a dis-colored ring around the case, just forward of the base. It may be a sign of impending case separation.
I also have a small amount of Federal brass, in .357. Never tried "off brands".