I looked on Google Trends to see how often the top two brands as well as Hipp Organic are searched online, and they all have a similar amount of searches over the years.
Cow & Gate: June 2005
Hipp Organic: June 2006
Ella’s Kitchen: March 2008
From these dates, which is when the product was initially searched for there has clearly been a competition for which baby food is best judging by the amount of searches they have on Google. As of February 2016, Hipp Organic are on top of everything, Ella’s Kitchen is second place, and Cow & Gate that was previously the top search of the three, is now the bottom search.
RWise Designs 