I like my iPhone 6 very much. But I want to exchange it against and Android-based Chinese One Plus soon. According to several magazine reports, it is one of the best phones on the market with only $400 in costs.
Iphone is not good in my taste actually because it dot inside in the touch screen I dont like that kind of design eventhough iphone is stronger quality than android maybe the creator will definitely avoid that dot in the iphone to make it better.
I do not think that the apple has more to offer than the same Samsung or HTC. All current brands today offer nearly the same capabilities of their devices, so I do not know who actually prefer.
The most common operating system for smartphones today is Android, and is an alternative to this invention there is no mass. So that you can really make a choice, and the conclusions which smartphone is better.