This is a measure of popularity based on the metric of feeling (favorable vs unfavorable). Using this metric one could place anything up there to compete, including Pizza! As a result, I am sure Pizza would have even higher "favorable" ratings than all of them!

What this chart does not show is the relationship to demand. Which would also be a basis of popularity. Then you would need to measure the basis of feelings against specific segments (android vs iPhone).

Bottom line....I think this report is a very unscientific measurement of "Popularity".