Assume that both React and Polymer are suitable for this project and you don't have any other alternatives.
I expected this. :D
As of now Polymer has 0 votes. I wonder "what's the real reason". Personally, I find React interesting because of 3 things :
What do you guys think?
As first i'd ask myself: is a framework like this really necessary? When the answer is yes, well, with no problem with evergreen browsers, and with a shotgun pointed to my head that prevents me for using far better framework like Vue.js, well, i'll choose Polymer that leverages web components. The React approach and syntax are just crazy and i'd stay away from it as much as possible
React has better documentation and the possibility of being turned into an app via react native.
Steffen Cope
Indelible Web.
I like the isomorphic side of React, and the portability to react-native is not to be undervalued.