I can appreciate a hot, black cup of coffee, if it's quality stuff.
Most of the time I don't really care. I pretty much drink cheap instant coffee for that caffeine fix first thing in the morning, sometimes late in the afternoon after a busy or tiring day. I'll drink any kind of coffee if offered (iced or hot) with whatever mixed in (sugar, milk, etc).
If it's cold outside I'll definitely drink it hot (with sugar or milk, or both, or even black, depending on the quality)
If It's hot outside I'll usually drink it iced (with sugar AND milk)