Best Auto Parts Store?

[Buick92]

I have a hard time with NAPA because prices vary by store, I know that they are independently owned so that might explain it, I can call 3 different stores within a 20 miles and get 3 different prices for the same Napa part number. I like the Napa service however, but for me the cheapest prices are usually at Schucks/Checkers/Kragen. (Of course CSK just got bought out)