iPhone pros
If you need more security control on your device.
And you want to enjoy the Apple ecosystem, when you just sharing screens to Mac, can open your iPhone clone on Mac, copy text from Mac and paste it to iPhone or back using synchronized memory for such as things. Great computational photography and video recording.
Android pros
If you need ultra flexibility with managing any kind of files. Uploading any APK and installing it in seconds. Or you want to place any widget you can just imagine (some of them Apple already get). Great clean photography and video recording (computational will give better fast result).