In the beginning we tried Similac, but caused serious constipation. Then Enfamil caused serious gas pains. FINALLY , I asked our pedi and they highly recommended Gerber. It's amazing! My daughter is a different baby now:)
The hospital started my son on similac for gas and fussing and that just made him gassy. Knowing how expensive formula can be we started with the cheapest it was a Wal-Mart brand called parents choice gentle and that actually worked really well for us.
We uswd parent's choice as well. It was cheaper and workwd well when I couldn't pump enough and then when we fully switch to formula when she was 8 months.
I had the worst luck breastfeeding. I was scarfing down oatmeal, mother's milk tea, and taking fenugreek. Thankfully, I made it at to 3 months (with supplementing, due to low supply.) Our pediatrician also started out my daughter on Gerber right from the beginning of our problems. Specifically, we used Gerber Good Start.
I used infimel gentle ease my kids had bad gas with others and that one worked the best