Here’s a funny one. A few years ago, my husband switched from Android to iOS and I switched from iOS to Android.
The best part about Android is the keypad, imho. It seems more sensitive and snappier whereas iOS has a more difficult one.
I also like the camera options in Android better.
Other than that, I actually don’t see much difference between the two. They are just phones with apps, etc. Most apps nowadays are made for Android as well as iOS. Maybe some games are just for one system or for the other but that’s about it.

In the end, I think that both operating systems are fairly similar.

What do you use? Android or iOS?