Originally I went with Android simply because I didn't like Apple/iTunes. I've always preferred PCs, and iTunes is one of the worst programs created (along with Real Player and Windows Vista). It wasn't until later on I learned the limitations of iOS outside of jailbreaking, short battery life, lack of 3rd party keyboards, and other such things. As time went on, I was increasingly happy I went with Android. I had LTE while everybody's iPhones topped out at 14.4Mb/s 3G. Expanding storage cost way less (and still does). Apple kickstarted the smartphone market; they weren't the first, but they were the ones that spurred on the revolution. But refusing to evolve outside their own little box that they prided themselves on thinking outside of made them fall way behind.
Obviously, many people will still and always love iPhones. The larger screens of the 6 and 6 Plus are obvious confessions by Apple that they've had their head up their collective ass for years. 4 years ago Steve Jobs said nobody will buy a phone that big (referring to the "huge" 4.3" screen of the Motorola Droid X). Samsung proved him wrong 3 years ago with the Galaxy S2, then the Note series, and have been proving him wrong ever since.
Frankly, I think iOS is just fine as an operating system. Is it the OS for me? Hell no. But I can't deny that it's well designed, well rounded, and nobody can deny the apps and games available for it. And if I had to, I could "get by" with an iPhone, since it will do pretty much anything I would want a smartphone to do throughout my day. But I also know I'd grow bored with it, and frustrated that I can't modify/customize/optimize it like I can an Android phone. And I'd never actually pay for an iPhone, unless it was an absurdly good deal (and I'd probably resell it anyway).
Relax, go nutz!