I spend a lot of time on both the East and West Coast of the US. On the East Coast I drink (and use for tea) Poland Spring for the most part, and Crystal Geyser when I'm on the West Coast. Both are good and reasonably priced buying in bulk in either location.
I love the taste of Volvic water but stopped drinking it when my husband grew concerned over news reports of arsenic levels. I also like Fiji - maybe because its cost induces me to drink it like an elixir instead of drinking only tea all day