I prefer the natural juice, if I didn't find it I can't drink.
Coca, Pepsi and the other kinds are completely unhealthy to your body and you should avoid them due to plenty of consequences (obesity, cancers and many also...)
This is exactly my point with Coca-Cola and Pepsi or even any other soft drinks as they call it. They are not healthy to take but some people wouldn't know that. If you can make your own juice fresh, it's 100 times better than taking Coca-Cola and Pepsi.