I like it room temp if Im just trying to rehydrate, but if I am parched and seriously thirsty, nothing feels better than a chilly glass of water. Not Arctic cold though.
MUST be chilled. I have to force myself to drink room temp water. And forget about the water bottle that's been sitting in a hot car.
Room temp. for me. I actually don't like ANY cold drinks except orange juice and unsweetened tea (cokes at room temp too).
Room temperature, as long as it's not Arrowhead brand. Arrowhead has a nasty taste when it's warm.
I drink a ton of water - Except for my coffee in the morning and my one soda a day, it is all I drink.
Not only do I go for chilled, but I also fill my glass completely with Ice. There is nothing like taking a swig of fresh, cold water!!
Excellent question
..that would be chilled. Room temp is too bohemian for me.

chilled but no ice cause my teeth get zenzitive... hehee