I agree.

Swift is quite good. I assume the tooling is catching up to Objective-C. It has been a couple of years since I had to solve something with Swift.

Any reason, apart from outside requirements, to pick the .NET CLR over the JVM as a runtime in your experience? Outside of library/framework support, which I've heard is good with the CLR.

How's the garbage collector with the CLR?

Today the CLR has better SIMD and struct alignment than the JVM.