Tap water as long as it's good.

Tap, but when I'm in a different country I drink bottled...

Tap

I'm just fine with tap water.

I love my Brita <3 So tap water with a filter. Bottled water always has a strange aftertaste for me.

I have one of those clip on filters for my faucet. I drink way too much water to warrant buying bottles, so much waste.

Bottled water

Since my city has some of the best tap water in the world (we're ranked 3rd, I believe) I am proud to say that I fill my glass up straight from the spout.

Bottled water

bottled

Other: no water

Tap. No plastic bottle waste!

Filtered tap water. All bottle water I've ever tried has a weird plasticky taste to it, so I just carry my own (metal) water bottle. I filter the water because plain tap water, at least in the area I live, has a... powdery? taste to it.

Both!

I prefer bottled water, but I usually have tap water because it's cheaper.

I have a water filter and resuse old bottle for freezing water, and then just have a regular bottle of everyday.

Filtered tap water.

I drink tap, unfiltered. It's abundant and free.

Bottled spring water is my preference. Rain water would be the best, since it is just plain ol' H2O, and that's what our body needs for hydration. Unfortunately, there's just too much crap in the air. I'm lucky enough to live in a small, rural area in which we have free access to a spring that has been procucing crystal clear, ice cold naturally filtered water since forever, lucky me.
Most bottled waters are just simply tap water anyway, filled with all the chlorine and pharmaceuticals that have been flushed down drains. It's an individual preference, but to have something as natural as possible is always my first thought.
PS: Chlorine kills "all" bacteria, good and bad. So, by drinking chlorinated tap water and/or bottled water, you are causing a huge imbalance of good bacteria vs bad bacteria in your intestinal tract. The bad bacteria grows back faster than the good. Similar to weeds growing back faster and taking over the grass of our lawns whenever pesticides are used.

bottled

I have a very weak resistance to toxins and microorganisms, so bottled water for me. At least if the water is of poor quality, I can sue.

I use a water filtration system. Tap water in my area is not the best, but it's not terrible either. I love those eco-friendly bottles too

bottled