I consider orange juice and other prepackaged juices to be, basically, sugar water. I wouldn't recommend switching to juices because you're still drinking your empty calories and throwing sugar bombs at your body under the illusion that it's "healthy".
100% OJ is not most prepackaged juice. It is very high in many of the water soluble vitamins as well as potassium and some magnesium. That it is healthy is only an "illusion" if you're drinking way too much of it.
P/S/A: There are single sentences which can create life-changing amounts of difference.