I used to use HG 95 chains on my Jamis Dragon 650b hardtail. I typically would see .75 stretch on the Park CC-2 chain checker after about a couple of months, at which time I would replace the chain. The thing that bothered me the most was that the HG95 would measure at .25 stretch even when brand new. The KMC X10sl chain that I'm currently using is 7 months old. When brand new the tolerances were so precise that the chain checker wouldn't even drop in and the 7 month old chain is currently showing just a tad more than .25 of stretch. (Btw, the lower priced basic KMC X10 chain lasted about the same as the HG 95.) For me, there is no comparison, and I will only use the KMC X10sl.
Fyi, I run Rock and Roll Gold chain lube on my chains. It is absolutely the cleanest lube I've used in my dry, dusty So Cal conditions, which further increases chain life. Although R and R may not result in the quietest running chains, from my experience, if a chain lube doesn't run clean, the resulting gritty paste definitely hastens chain wear.