Real Southern Ice Tea, like I grew up drinking, is sweet tea. Very sweet. Most Southerners I know never put sugar in cornbread, they also never make ice tea without it.
How you serve this tea is as important as how you make it. When serving, fill the glass with ice first, then pour in the tea. Never serve Southern tea with 2 cubes of ice like restaurants tend to do. After pouring the tea in the glass, the ice will settle down a little, add more ice to fill up the glass.
We have found that using a name brand of tea also makes a difference. If you use an off-brand you may find that you need to use additional tea bags than this recipe calls for. Just be sure your finished tea, on the stove, is a dark, rich color.