A language must make it easy to create the compelling UI. My experience at using crappy looking Java applications is that Java must make it difficult to create a good UI because I'VE NEVER SEEN A GOOD JAVA UI. So, my experience tells me the language is important. Ux is *important*.

Do my applications have a compelling UI? It depends on the application. Some do, some don't. It depends on what's needed. Every application has different needs.

>In what possible sense does a language make a UI/UX compelling?
>
>Just to get some baseline here: do your apps have a compelling UI?