Poll: What is the best formula for fussiness/gas?

JKTTC1

I am having to supplement occasionally with formula. We started out supplementing with Similac Sensitive. LO seemed to do pretty good with it. It was a sample and since we didn't use it within a month, we had to throw it out. Then we started on the next sample of Enfamil Newborn and the issues with the infant dying caused us to set it to the side until it was all resolved. Pediatrician said we could keep trying the different samples because all the basic formula was the same. So we started on Similac Advance (reg. in the blue can). Well LO seems to reject it and causes him tummy aches. So I am off to the store to purchase a "sensitive" brand but unsure what to get!

Edit: LO has not been tested for a milk allergy. I was unsure if we could still try the soy formula to see if it makes him feel better.

[Poll]