I tried them all, lol. I had Blackberry, Motorola Droids, Samsung... but in the end I need to be able to rely on my devices. I had countless issues with Android, mostly around the software updates which messed up everything, I'm always on the go, I drive all over the western half of the US, hike, backpack, teach outdoor stuff, guided trips, do trail reports, animal and plant studies, I need a solid device with a solid OS that won't go splat at the worst moment.
Apple makes it so easy for me, i have the tech know how of a potato and everything is intuitive, clear, uncluttered and speedy.
I have zero reason to go back to Android.