Honestly, both are good, kaya depende talaga sa baby mo kung alin ang mas agree sa kanya! A few of us tried both, and some babies thrive sa Similac while others do better sa Enfamil, so it's really trial and error. I'd suggest sticking with whichever one your baby's already on kung okay sya, pero if you want to switch, do it gradually para hindi ma-upset ang tummy niya. What matters most is na kumakain sya well at healthy, di ba?