I usually like Sonoma Cutrer Chardonnay but on the Mariner we tried the Matala Shiraz and it's quite good. Can't find it locally, but the Penfold's Cabernet/Shiraz is close. Also Katherine Cambria Chardonnay is big on our list.
Remeber Lancer's? That was a college favorite....
I get Far Niente Chardonnay($39)and other good wines at Costco. Sometimes 1/2 price of the liquor stores.