I voted for apple because I have an Iphone 5c and a Ipod 4. All of my family member has apple products
Android, I use it, and I've heard from classmates that Apple has copied from other companies... *cough* Samsung *cough* Also, the Android OS DOES change, however, the iOS hasn't really changed visually for a LONG time...
As far as range, Android is endless, any size, memory, prise you could ever want. The Sony Xperia Z5 is the ultimate phone on the market right now and it's less than the IPhone. As for accessibility it really depends who you are, my parents like most aren't crazy technology savy like us so they prefer IOSs refined design and simplicity. Being parents most can afford the price. Personally I'll be Sony Android until I can be convinced there is a better option.