I like cold water that's not too icy.
In the Fall and Winter seasons, I don't mind if my water is room temperature (as in taking it out of the fridge and leaving it out) because the air quality is naturally cooler and less humid so the water isn't warm but on the “cool” side.
In the Spring it depends, but in the Summer, Nah I gotta have it cold but not necessarily icy because too much ice gets in the way of having a consistent stream of water to drink as the ice crystals can scratch and irritate your throat.
I don't drink water in a glass but in bottles (spring water, canisters, etc).