I like this one better: http://voting-2048.herokuapp.com/

Edit: pull request here if anyone wants to see the code:

https://github.com/grant/hnplays2048/pull/13

Users should only be able to vote once (maybe be allowed to change it, but right now someone can overrule the consensus by hitting an arrow key as many times as they can)

Nice work though!

Thanks for the feature, dbieber!