From a technical standpoint Apple's processors are industry leading- they licensed the core tech from ARM, but their combination of getting them built on advanced production nodes and the tight design integration into the products makes them stand out. And Apple's software support is a couple years longer than most other brands- so an iPhone will continue to be useable in terms of speed and security longer than most Android phones. From a development standpoint, developing for Apple devices on an Apple device is a better experience.

I would say that most other things are on par with other devices/brands, and so you would trade on individual things that you prioritize- screen quality, battery life, compatibility with particular software, etc. And there are a couple small areas in which Apple probably doesn't make sense. For basic video editing, I might still use Apple devices. But if I was creating a rendering farm for an animation studio, I'd probably build servers with video cards and parts that weren't Apple.