I use React because I think it is the one that embraces the most the functional component design.
New versions of React are on the right track.
Having to work with Vue or Angular is a lot of pain for me, especially because I'm used to the simplicity of React (which comes with the great price of a high learning curve). Also, the use of the Flux Pattern is so much easier with React, being designed as a one way data flow, than with its two foremost competitors.
Cheers to the React Team, and thank you very much !