I'd love to buy an iPhone that is waterproof, has decent battery life, durable screen (that part apparently has gotten better recently, though), can run Firefox (the actual one with proper ad-blocking options) and is generally made to withstand punishment from being used in the field.

Until such a beast is released, I'll stick with my (admittedly) crappy and de-googlified Android phone; I simply can't afford to buy a new iPhone 3-4 times a year because they keep breaking.