i drink a lot of water, have a huge glass of water next me as i type, but i do like soda. i'll drink a can here and there, usually i go for water. to me, drinking a soda just makes me more thirsty, but water quenches that thirst.
as for the things that coke can do... about 7 years ago i was working as a waitress at this small family-owned restaurant. one day the owner's wife commented on how much soda the waitresse drank and told us how unhealthy it was for our bodies. most of the girls just shrugged and laughed it off but i was interested in what she had to say. she took me and one of the other girls into the walk-in and pulled out a big hunk of meat, if memory serves it was liver, and put it into a shallow dish. then she poured some coke into the dish, about halfway up the side of the meat. she covered it with plastic wrap and and stuck it back in the walk-in. she told us to check on it in 2 days. 2 days later, we went in there and lifted that piece of meat and the underside was almost completely gone. the meat had literally dissolved in the coke. now i know there's always a chance that she went back in there and did something to it, just to put a scare into us girls to get us to drink less soda but either way i have cut down on my soda intake... considerably!