AppleInsider has a writeup, “WWDC 2015 guaranteed to highlight growing gap between Apple and Google”, comparing Android to Apple’s iOS as we approach the 10th anniversary for iOS.
Approaching the end of the first decade of iOS
Why Apple won & why nobody believed it could
Why Android was supposed to win & why everyone believed it could
Un-Rewriting the history of Android
Apple & Google’s two very different visions for mobile devices
Apple keeps doing what it had been
Google’s Android kills iOS competitors
Google’s Android fails at platform competency
Google’s Android fails at privacy
Give it a read, it’s very unbiased for being on an Apple rumor website.