Post Voting System is the new WordPress plugin that provides you an easy post voting feature that sets up automatically and there are no admin section configuration settings.
Simply install and activate Post Voting System. Upon activation the plugin automatically adds a thumbs-up and thumbs-down button under your blog posts.
Your registered users click these buttons to vote for their favorite blog posts and admin can see all votes and their stats from Dashboard -> PVS admin page. Also you can reset the votes counter and start a fresh reading.