Lapua is the gold standard.
Norma is a solid 2nd.
After that the gap is pretty close, I've been using Peterson and it's decent, but I've also used (sorted and prepped) PRVI, Winchester 308 (blue bag, current stuff is crap), resized PRVI 7mm-08, 1F IVI, and really they all shot great and the PRVI lasted a really long time, I only wore out a few IVI in the M14, in a bolt gun they may last forever, but have the lowest case capacity.
You buy 50 Lapua cases, they are all good, same with Norma, and you will get twice as many warm reloads out of them compared to the other stuff.
The rest you might get 30-40 within a consistent weight range and some brass for foulers, and they never last nearly as long.
I've also got some SIG and Kinetic 6.5CM brass but haven't put it through the ringer yet, they both make 308 as well, it looks promising so far but time will tell.