Well, this really depends on your definition of healthy. If you drink coffee to reap its health benefits in terms of anti-oxidants and protection against heart disease and stroke, then opting for Turkish coffee is definitely a better choice, since Nescafe contains a highly processed creamer. From a point of view of scientific proof, there is nothing that says that Turkish coffee is healthier, or less hazardous, than Nescafe; the opposite holds true as well. Furthermore, no study has explored the benefits or long-term adverse effects of ready to drink coffee+creamer combinations.
To make your life easier and in order not to complicate things, you may opt to drink Nescafe in the morning, since you are more likely to burn the calories from the creamer during our daily activities, and have a Turkish coffee later during the day.