Ralphs is on my way home, but have always felt it was pricier than Vons.
They have neither close to my area but they do have Save-A-Lots. They sell mostly generic products and its a whole lot cheaper than any other grocery store i’ve shopped at. http://www.supervalu.com/retail/banners/savealot.jsp
Vons is cheaper.
Ralphs was the MOST expensive supermarket in town, before they went belly up here.