Haven't tried Vue yet but I like the idea of having a choice. It would seem to me that for most cases one would simply a template since it gets you there easily and without any boilerplate. For the cases where one does need the full power of Javascript, JSX is the solution. I'd imagine that most components would initially be written as templates, and some would be refactored into JSX along the way, which is probably not much of a pain.

Really want to play with it ...