Formula milk options

Planning to change my child milk from enfamil. kaso dalawa na sila mag gagatas 😅Im torn between promil pink 1-3 or nan optipro Parents please help me decide. Walang 1 pack si nan so no choice to buy big box if ever unlike promil pink. Which is better sa dalawa po#pleasehelp #advicepls #pregnancy #theasianparentph