The only thing that really matters is how much Apple profits from the sale of each iOS device, and how much developers make from their apps. Android can have a 500% lead and it won't matter if Apple is making money and if developers earn more by developing for iOS than Android. Until Android finds a way to stop pirating of apps, iOS will have better apps and better apps are a big part of a better user experience.
It's as simple as that.
For all its vaunted market share, look at the ravaged wasteland of a business called "Making Windows PCs."
Quite laughable, really, this obsession with market share. It's the Walmart worldview.