I have tried several different formulas, and Enfamil Lipil is the only one that either of my children could tolerate. I love that it contains DHA/ARA, and is also available in a NEXT STEP formula for children up to 24months. It doesn't have that 'nasty formula' smell that other formulas have, and it doesn't stain their clothes.
Enfamil Lipil Formula with Iron is recommended by socialbug