I'm using the latest version of WordPress and SEO plugin.
I have a Theme which has a custom page (standard format) that collects categories and makes them as posts thereby acting as a blog. I set this page as the static front page. I have left the "blog page" in the same WordPress setting as blank.
Facebook snippets do no show the meta description or picture correctly of the front page. Google + shows it correctly. Both Facebook and Google + will show my other pages correctly (blog posts, portfolio, etc).