iPhone used to be better because of the operating system, back when Cydia and/or jailbreaking was easy which made iOS a thousand times better in the right hands.
Nowadays, Android has a lot of the features that only iOS exclusively used to have and with the newer version of iOS becoming much worse especially with the Jailbreaking scene slowly dying...
There is really no more argument as to how an iPhone will ever be better then an Android.
FYI, I still have an iPhone and have had iPhones since the 3G.
At the current point, my iPhone 7 will be my last iPhone period.
I have had enough with Apple's ********, the newer version of iOS, and the lack of a proper untethered jailbreak for 10+.
Not to mention the outdated hardware which has always been a negative since Android came along.