I have the feeling most people who choose Vue over React do it because Vue is marked as "simpler than React", which I don't understand, but I have to admit I only tried a simple Vue example and it seemed much more complicated as the React version.

I mean, how much simpler could you get? Every UI element is a component, you pass data and event handlers down via props and events up.

The only other approach I found, that had less concepts, were the observables in Cycle.js, where basically everything is an observable.