As long as it's diet, I'm okay with anything. However, of the big names, Diet Coke is my choice. But to be honest, I think the best tasting diet cola is Walmart's "Sam's Choice." I just love it when my favorite things are also the cheapest. ;-)
No i don't like any soft drinks because all are injurious to health. So i also advise all not to drink any cola. Carbon dioxide and all other chemicals are not good for us. Before some years in INDIA, it is proven. And also protest had done against these colas.