Last night I blind tasted 4 brands of commercially available water: CG, WFM, Evian, and Glacier vending machine (reverse osmosis with mineral add back).
Result of blind tasting: CG and WFM taste identical to each other (please note that both brands were bottled by C.G. Roxane). Where I am, the water comes from CGR’s Olancha Peak, CA facility. Both are clean tasting and quite neutral overall. Evian has a very clean and crisp aftertaste, but also rather thin and hollow. Glacier (reverse osmosis vending machine) has a rounded mouthfeel and a kind of sweet aftertaste.
Oh, and all water were poured into 4 Spiegelau white wine crystals to allow swirling before tasting (asked my wife to pour while I hid).
Why do I feel the $0.25/gallon vending machine water wins? It brews decent tea, really.
PS: Those thinking of becoming water connoisseurs should read Fine Waters: A Connoisseur's Guide to the World's Most Distinctive Bottled Waters by Michael Mascha (Quirk Books, October 2006).