I'm definitely straight from the tap kind of girl. I'm not a huge fan of drinking natural water and really will only do so to quench my thirst opposed to drinking it to ensure 2 litres of water per day.
I find chilled water has a slightly different taste (it's as though you can almost taste the chemicals in the water) even if it's filtered. It could just be my taste buds or the water in Sydney but having grown up in Adelaide where the water was absolutely horrid, I may have taken my dislike of water into adulthood simply because of bad experience.