Apple once stated [not an exact quote] anything larger than a 4" screen was unnecessary. This has seriously impacted their worldwide market share as the market has demanded larger screens.
With the entry of the iPhone 6, Apple is more or less doing catch up and hoping to gain market share.
If you're looking for a device that works well out of the box, then Apple is your choice.
If you are interested in well made Android devices that have more features and can be modified, look at the LG G3, HTC M8 and the new Motorola devices.
It's based on what you really want or need.