Dr Brown's bottles really are the best in preventing gas, bottle leakage, ... Initially I tried all the bottles given by pediatrician, the bottles i bought from the store, but We ended up throwing all other bottles away once we started using Dr Brown's bottles.When my daughter was born, we tried sampling bottles from several different manufacturers, including Evenflo, Triflow, Avent, etc. Dr Brown's bottles really are the best in preventing gas, bottle leakage, and flow problems. We ended up throwing all other bottles away. I had read other reviews about the small parts being difficult to wash,...