I use FL820S for 10,000+ miles on my Ford 4.6, with great UOA results. For 3.38, I don't think you can beat it from a performance/cost/value standpoint.
I happen to use WIX (which would be Napa Gold) on my two Subaru, and it does great for at least 15,000 miles, based upon UOA's and visual inspection after cutting them open.