What's the best Social Login plugin

What would be the best social plugin that allows you to login into the site with Facebook, Twitter, G+ and LinkedIn. There are quite a few of them out there and some of them offer 30+ social networks. That’s too many, I would only want the main 4-5 social networks and ideally, implement it as a lightwindow popup. Very similar to this site wpmudev.org. It just looks nice and slick.

Any thoughts?