I'm betting long on ElementaryOS[1]. It's a distro that wants to be top-notch in UX, design, developer APIs and system frameworks. They even have a Human Interfaces Guideline. Still a work in progress, but I used their previous release for a while and it was just a breeze of fresh air after Gnome/Unity, and surprisingly stable.
Two things are real blockers for Linux desktop adoption: the Adobe suite (or alt) for professionals, and gaming for casual users. One of these is about to be solved :)
Two things are real blockers for Linux desktop adoption: the Adobe suite (or alt) for professionals, and gaming for casual users. One of these is about to be solved :)
[1] http://elementaryos.org/