For the Minimalists
If you want to scroll through feeds quickly in plaintext, Digg Reader and AOL Reader are the RSS picks for you. It may seem strange to lump the two together — besides the fact that both were built by companies generally considered past their prime — but if you compare them, they are nearly identical. Both load quickly in stripped-down interfaces with basic sharing options. In general, AOL’s interface is a bit more customizable: You can choose to show more or fewer images, and there are more sharing options. But the major differentiator is mobile access: Both have functional mobile sites, but Digg has already released iOS and Android apps while AOL Reader, still in beta, has not yet fulfilled its promises to build them.
If You're Looking for A Little Glitz
If Google Reader was a print newspaper, then Feedly is a glossy mag. Instead of focusing on just the text, each story has a featured image embedded in a stylized, tiled layout. But that doesn’t mean it’s lacking on the tech side; despite the heavy image load, Feedly runs as smooth as butter. Additionally, it has a plethora of sharing options, apps for both iOS and Android, and a mobile site. And, on September 18, Feedly opened up its API to developers, meaning third-party apps are on their way.
The Old Reader and Reader2000 were born from a Google Reader scandal of a different era: the shutting down of sharing options in 2011. Before Twitter and Facebook dominated article sharing, you could share articles within Google Reader to a small network of friends. When Google launched G+ and shut down this feature, it was met with outrage from a small group of power-users — many of whom went into exile onto one of these two sites.