Bottled water is definitely better for you.
I've been drinking bottled water since I was about 8 years old. When I was a kid we used to have our own Water cooler in our house. Our water used to be delivered in 5 gallon jugs from (
http://www.whitehousesprings.com/).
I have since - becoming an adult used my own water coolers with water from trusted sources, and have drank out of bottled water. I have never drank out of a faucet less than 100 times in the past 17 years...
There is a huge difference in quality. First off a lot of the pipes here were lead or copper based. Therefore you have a metallic taste with your water. Secondly, the water is re-filtered and mixed with your shit, it sits in chemicals for up to one year before reaching your mouth agian, but still. If you take a microscope to the water you can still find toilet paper particles (oh yea, it's true):
http://hight3ch.com/toilet-paper-residue-in-tap-water/. Futhermore, a main chemical and component in the tap water is "Fluoride" if you read on the back of your toothpaste or any other product that contains "Fluoride" you are told to contact a poison control center immediately if ingested. Why? Because Fluoride is poisonous to our health. Yet there is large amounts of Fluoride in our water system.
Moving on. Estrogen. Estrogen is cause for concern for men, because it can cause mood swings, increase fatty areas and other side effects. When women menstruate, drop tampons, etc in the water, estrogen is released. Estrogen is very hard to clear out of the fresh water supply. Please see:
http://www.huffingtonpost.ca/2011/11/14/estrogen-in-drinking-water-prostate-cancer_n_1093696.html
So therefore, I am worried for ANYONE who drinks out of the tap water. Simply because the water is filled with poisonous chemicals that are linked to CANCEROUS studies. When you hear of entire streets getting cancer, the first thing people say is "Must be something in the water". When you have areas of bad crime or health, one of the first things you hear people say "Must be something in the water". Sometimes you might hear "Must be something in the air".
However, there's a reason why the saying is "Must be something in the water", because there's stuff in there alright, more stuff than you or I want to know.
Oh and last but not least... Water isn't $0.01/bottle anymore here in America. Water prices are on the rize far more than anyone knows and it's going to rise dramatically soon regardless of what source of water you choose to use.
Good luck, stay healthy, drink fresh.
P.S.
I know whole streets of people who have died from bad drinking water. My grandfather was one of those people.
http://www.clevescene.com/cleveland/cancer-in-paradise/Content?oid=1491100
http://www.cleveland.com/healthfit/index.ssf/2009/08/cancer_rates_in_avon_lake_are.html
On the flip side of that.... I don't know a single person who has died from drinking bottled water or water from a fresh spring?