I have always felt like Swift is the king of application development. The syntax and ergonomics really lend itself to UIs and the like. It's a shame that the Swift compiler is on the slow side.
The best way I've found to mitigate the compiler speed issue is to factor my application workspace into different sub-projects, so that the sub-projects don't get built every time I make a change. It makes a huge difference and, honestly, it's something I should have been doing anyway, just for good architectural layering.
