I still believe that iOS is more secure than android, but that’s literally because Apple controls the software. Apple’s also great at rapid security responses to patch security breaches, and hacking/exploiting an iPhone is a bit harder, not to say android isn’t secure either.

App optimizations is one as well. Typically iOS apps receive far more attention than android counterparts. There’s tons of different android devices than there are Apple, so you can tell which would be easier to optimize and update.

iOS looks the same on everyone’s device. That may sound like a disadvantage, but you get past the initial learning curve of using an iPhone the first time, you could pick up somebody else’s iPhone and know how to navigate it. You’d have the same gestures, button for Siri, control center, etc. it’s a blessing but a curse.

I always find funny the argument that Apple copies features from android, which is true to an extent. Android has something for a few phones, then removes it a few iterations later. Apple refines feature the “Apple way” that android had previously. Android brings feature back and it’ll literally look like a skin from Apple’s feature. Everybody’s pointing fingers at each other.

As other’s said. It’s preference. You’d be happy with both, especially since they’ve both matured quite nicely.