@conner74 My favourite was whatever was available and cheap!
All were standard (non-gentle) versions. We had some gas and discomfort for a while but that resolved on its own eventually as it does for most babies.
It was either Enfamil or Similac in the hospital. Was never sure which because they only poured a little bit out into a vial to feed with a dropper (f*cking bAbY fRiEnDlY hospital nonsense).
Mix of Similac RTF and Nestlé (a.k.a. Gerber) Goodstart RTF at home, whichever had coupons or sales.
Then GoodStart liquid concentrate. Somewhat cheaper than RTF and still pretty convenient.
Then GoodStart powder for like a week before I realized Kirkland was cheaper, even vs GoodStart coupons.
Baby on the way will be whatever RTF we can get cheapest just for the convenience (May drive to the US to stock up - we're in Canada and formula has gone bonkers since Baby #1).
Once we decide the convenience of RTF isn't worth the extra cost we'll be switching to whatever powder is cheapest. Likely Kirkland if it comes back to Canada in time, but Costco and Walmart Canada have reportedly been carrying Kendamil a bit cheaper than Enfamil/Similac and Walmart Canada also has Modilac from France that seems to always be on sale really cheap. I suspect Modilac's days at Walmart are numbered and that's why it's cheap so it may not be a reliable supply going forward though.
I'd rather save money on formula and beef up my kid's college fund early. That's going to be more beneficial in the long run.