Honestly, lahat ng major formulas, Enfamil, Similac, Nan, S26, they're all pretty close na sa breastmilk composition ngayon, kaya ang choice usually depends sa baby kung paano sila mag-digest at kung ano ang budget mo. A few of us tried different brands kasi ang isa naming baby ay mas okay sa Nan while ang iba namin ay better with S26, so it's really hit-and-miss per baby, best talaga to consult your pedia kung ano ang ideal for your little one, especially if may concerns ka about digestion or allergies!