whats everyone doing for car batteries these days??

NAPA for me 100% now. We bought a 1 year old Winnebago in 2012. It came with 2 NAPA Marine batteries for the coach. They lasted 4 years. I bought Wally World Marine batteries from Sams and they lasted 11 months. They replaced both of them and the new ones lasted one year. I replaced them with NAPA batteries, and they lasted 4 years. I just bought 2 more. I have had several Wally World batteries die before their time. A friend of mine has a friend who owns a service station, and he replaces WAY more failed Wally World batteries than any other brand.
I don't know who makes NAPA batteries, but that is all I use now.
I have heard that Optima makes a good battery, but I cannot justify the extra cost.