Leo's pick on MacBreak Weekly 407 is the new Reeder 2 for Mac. Reeder 2 works with several RSS services including Feedbin, Feedly, Feed Wrangler, Fever and Readibility. It also supports its own local standalone RSS functionality so you don't need to sync with a third party service if you don't want to. The latest version of Reeder has new themes, including white and dark, and configurable shortcuts to switch between the themes.
When it comes time to share an article, Reeder 2 has a wide variety of sharing services built in. It can share to Facebook, Twitter, Pinboard, Evernote, Safari's Reading List, Delicious, App.net, Pocket, Instapaper, Readibility and several more. It also can share links through Mac Mail and Messages. If you're looking for a solid RSS app with a great reading experience on the Mac, Reeder 2 is highly recommended. The app is available on Mac and iOS.
For more on Reeder 2, check out MacBreak Weekly episode 407.