My basement floor is concrete, we have carpet with padding on two of the rooms, indoor outdoor on the exercise room and tile on the pool room. We haven't had any trouble with water on any of the floors since we built the house, soon be five years.
The only problem we had was when one of the guys covered up the end of the drain pipe when he bulldozed. Well, it just so happened that it rained for about a week, my son started down the steps and yelled at us to come quickly. We had about six inches of water covering the entire basement. We hadn't lived in the house very long, about three months. I called our contractor and they came down that night and uncovered the drain pipe. The water disappeared in a few minutes. They came back the next day and took up all of the carpet and pad. The pad had to be replaced luckly we were able to dry the carpet out and save it. The tile floor wasn't hurt. But we keep an eye on that drain pipe now.