I don’t care at all about the bubbles. I don’t use iMessage at all, 0.
Convenience. Most things “just work”. No need to customize or fiddle with things.
Price. Hear me out :D I used Android phones in the past (a mix of mid-ranges and flagships) and over time it ended being more expensive than using an iPhone.
Ecosystem. My mac laptops, watch, earphones, phone etc. all work together in useful ways. It sounds gimmicky but most of the time it’s not.
Apple watch. There simply isn’t anything that is close to it.
How everything feels cohesive and designed with the bigger picture in mind. Especially in the first party apps, you mostly know how things will behave.
Feels more “polished”. I always felt like I’m using something that is designed by an engineer when using Android.