User Rating / Review Add on for UserPro v3.5 is the best choice if you have a community of members, where in you freedomly would like users to easily provide wish-able reviews or self liked ratings for each other. For above mentioned features you can use this premium UserPro addon. It is powered with ajax, its mean you do not need to reload the entire page.
The WordPress Comment Rating Plugin allows ratings on your comments. Click the Live Preview button and scroll down to the comments section to see it in action.
DescriptionLiker v1.0.3 is a premium WordPress plugin for collecting ratings of WordPress posts and pages. The plugin allows you to quickly and accurately gather information about the usefulness of your articles. The Liker plugin can collect ratings in both like and opinion formats of like / dislike, yes / maybe / no and a simple +1 button.