I have used Note 2 and
LG G2 of
Android. From
iPhone side, I have used 3G, 4, 4S, 5S and 6S Plus.
iOS: Positives
1. iPhone 6 and above devices are smoothest devices with minimal UI stutter.
2. Lesser bloat compared to Android.
3. Timely updates. If
Apple releases software update, your device will get it no matter the country or the carrier.
4. Show..sha.. Sad but true. Rose gold is still a status symbol. People judge you based on your phone.
5. Dual Core processor in 6S is still as fast as Quad/Octa Cores found in just announced
Samsung Galaxy S7/LG G5.
6. Good Camera. I felt enraged when my iPhone 6S Plus captured better photos than my
Sony Alpha A5000 Mirrorless DSLR.
iOS: Negatives
1. There is no file system. You have to convert videos to MP4 (video codec: h.264 and audio codec: aac) only. The files must be synced or transferred using iTunes only.
2. You cannot use torrent app to download directly to your device.
3. iOS apps may be of better quality, but are sometimes more costly.
4. iPhone 5S and lower devices have acquired Android's trademark lag/stutter. Doubts are being raised about Apple's planned obsolescence strategy.
5. iOS also employs input blocking where you have to wait 1-2 seconds after UI animation finishes before your phone is responsive again.
6. Limited customization. You cannot theme or add widgets to your phone. Wait for jailbreak.
7. You will have to buy MFI Lightning cables and other accessories.
You need to decide based on your usage and budget.