React didn't become popular because it was from FB. If that was all it took, any lib/framework from big companies would've become just as popular and that's clearly not the case.
Vue does a lot of things right and is probably a great choice if you like what it offers, but I don't like anything that offers a DSL. Yes I know the standard reply to this is that Vue can do JSX, but that's like saying you can write React without JSX - no one does that, its not the main attraction, and its kludgy in Vue. Same goes for not using ES6, class syntax etc - the reasons are not really good enough.
I guess I don't buy the argument that Vue is easier to understand and 'clean' compared to React - it has a mich larger surface area, lots of extra concepts and things to learn.
Why should it be the replacement for Blaze - just because it has templates?
IMO a worthy option would be React + Mobx. Mobx is a natural evolution of Tracker, and combined with React it makes for very easy state management with observables. Benchmarks are pointless, since all these frameworks are fast enough. If I wanted raw speed I'd use Inferno, not Vue/React anyway.