What the Flux? (On Flux, DDD, and CQRS)

There are several implementations of Flux. Frameworks like Fluxxor keep to the original Facebook Flux pattern, but reduces the amount of boilerplate code. While other frameworks like Reflux and Barracks stray from the canonical Flux architecture by getting rid of the Dispatcher (Reflux) or ActionCreators (Barracks). So which framework should you choose?