We're talking about stability here. If I compare the Apple devices I have used (iPhone 3G up to 5s) to the Android devices (various tables, and a Samsung phone we bought to replace my mother-in-law's iPhone 4), Apple still comes out ahead. I've had some hardware issues on the Apple devices, most notably the AntennaGate issue (noticable but hardly a real issue) as well as WiFi dying on an iPhone 4s (pretty uch bricking it, and just after warranty expired, of course). I have had hardware issues on Android stuff as well, mainly home buttons breaking and a battery dying because it got undercharged... the battery was replaced easily enough, but the new battery will break just the same if I leave the tablet off the charger for too long.
Software wise, iPhones have been rock solid for me, a few minor issues asides. I have not had any major issues like I experienced on the Android devices, such as the browser getting hijacked somehow (with only a couple of regular apps installed), and one Samsung phone that at some point will just reboot every few minutes, with the only fix being a factory reset.
Apple stuff still "just works". Unless it does not do out of the box what you want it to do, then chances are that you're stuffed if you picked iOS. iOS is a walled garden, but sitting here in my comfort zone I can't even see the wall, much less feel it or be bothered by it. Never even considered jailbreaking my phone. I don't like Apple or their business practices all that much, and I wish they'd open up their OS a little, but there is no way I'll switch to Android anytime soon after the decidedly poor experiences I have had with Android. But that is just personal, I know plenty of people who switched from Apple to Android and haven't looked back. Some others have returned to Apple. So perhaps it is mostly a matter of taste after all.