No love for Xamarin?
Being able to target Android/iOS[/WP, relevancy aside] (and UWP in part, with a shared logic codebase), is pretty nice. I rather suspect it will get full UWP support in due course, also.
In my experience, it's fast at runtime, very easy to debug, very customisable UX, easy to code for in a pleasant, highly productive language with amazing tooling (best in VS, but Xamarin Studio on Mac or Linux isn't bad, especially compared to the competition), allows you to share often the vast majority of the codebase across platforms, has very good, but optional, Azure integrations should you want them - and free. Pretty compelling offering, I'd have thought!