Bottles: Older Child

Best Bottle for Colic

New to this website...ok--My hubby and I are trying to get pregnant with our second child. My first son, now a healthy 8 year old, had major tummy issues as an infant!! Very colic-gas-spit uppy baby. So...my question is do any of you other Mamas use the Avent or Dr. Brown's bottles?? I used the regular type with my son and I am hoping to use something different with the next one (trying to ward off all those sleepless nights!) Let me know if the extra cost is worth it or if you have any other recommendations. Of course, I will breast...