If you don't need the “advanced” features of VLC's desktop app, the UWP app is beautiful and modern looking, while also providing that "opens ALL the formats" VLC UX.
I use the uwp on Xbox and I'm glad it exists but its a stale project at the moment.
Status update: The VLC for WinRT app is retired (deprecated), there is no more development being done on it. We advice you to use the classic VLC app instead. For UWP support in your LibVLC apps, have a look at libvlcsharp.