I really don’t understand the obsession with discrediting links with nofollow. I don’t think I’ve ever placed a nofollow link on this site and any of its blog posts. Perhaps, it’s ignorant on my part. However, I take the definition of nofollow at face value. It tells Google and other search engines that you don’t vouch for that link. So what is the point really?
Having researched all of these six plugins (WP Product Review Pro, All in One Schema Rich Snippets, WP Review Pro, Rich Reviews, WP Customer Reviews, Site Reviews), I can definitely vouch for one of them. Site Reviews may have a small install base, but as a free plugin, it is a great way to collect reviews and display them as a combined rich snippet. Normally, I would dismiss reviews on a company’s own website, but the benefits of having an attractive review schema displayed on that page in Google should not be ignored.