Love the Dr Brown bottles. My niece never had gas!

playtex ventaire or tommee tippee hands down!

I breastfed and used the Playtex vent aire ones.. my son did fine going back and forth between breastfeeding and bottle feeding and he had latch issues at first in the hospital.. you can hear the air leaving the bottle as the baby eats :)

nuk

I have Dr. Brown glass bottles and tommee tippee

Tommy Tippee or Playtex Vent Air

I personally like Tommee Tippee bottles or the Latch ones!!