Aquafina
And yes, for some people different waters do have a different tastes. My friends didn't believe me and tested me. 3 different bottles waters (Aquafina, Arrowhead, Sam's Club brand), poured them into cups and asked me which was which and I got all 3.
And I've had some really bad bottled water. I forgot what it was, but it tasted and felt like I was drinking air.
however the water I drink most often is filtered tap. Got me a Brita dispenser tank thing in the fridge. Fill it up before I go to sleep and I got nice cold water for a day.
And I'm not particularly picky about my water (unless it is Dasani, I hate Dasani). I've drank from the hose faucet. Lets face it, there are people in the world that would kill to drink our toilet water, I don't think it is right to be picky.