Now, bottled water tastes - ick - it tastes like plastic (and bottled water is just someone else's tap water put in a bottle and marked up in price). But, tap water or filtered tap water? Cold, wet and satisfying is all I think about how it tastes.
"In industrial countries with highly regulated water supplies, tap water has been proven to be just as safe, or safer, than its commercial counterpart. In the United States, regulations concerning bottled water are generally the same as for tap water, but are weaker for some microbial contaminants. The U.S. Food and Drug Administration, which regulates bottled water at the federal level, permits the product to contain certain levels of fecal matter, whereas the Environmental Protection Agency does not allow any human waste in city tap water. Bottled water violations are not always reported to the public, and in most cases the products may be recalled up to 15 months after the problematic water was produced, distributed, and sold."
I'll stick with my filtered tap water.