I've told this story before, but I'll tell it again. I was an iOS user from day 1. Switched to Android when Apple refused to release a large screen device. I used multiple Androids over 2 years (HTCs, Nexus devices), and while I could do some geeky things with them they all had issues. Battery life was terrible. My Nexus 5 would randomly have a Google process spin out of control and kill the batter in 5 minutes. Updates tended to make the device not work as well (my Nexus 7 sits in a drawer after becoming unusable from updates).

I finally switched back to an iPhone, and realized how silly I was trying to convince my iPhone using friends to switch to Android. It just works. My friends don't care about kernels or custom ROMs. They want an OS that works, is secure, and stays updated. iOS does that. Apple will have to really mess things up for me to leave iOS at this point. For something I interact with on a daily basis, I don't have the time or the patience to deal with Android.