L.B.
I always stuck with the rice cereal because it was filling and seemed to cause less gas. I would strongly encourage you to get some Little Tummy's Gas Drops (much cheaper than Mylacon). They work wonders and are very safe for the kids... best way to know if they have gas is if their bellies are really tight. We virtually lived off the drops with my eldest and consider the drops one of the MUST HAVES for every new mom.