This plugin will allow to add 5 famous people and let user check their income compared to the famous people.

Create Professional Comparison Tables and Easily Add Them to Your Website. Dozens of skins, customize the tables as you want, endless design options. Powered by Common Ninja.

Wishlist and Comparison Plugin enables your customer to move products to the wishlist for future purchases. The comparison aspect of the plugin enables you to determine the best in terms of product features

Let your visitors vote between posts and images to create honest rankings. Uses the ELO Algorithm and works with your site's existing content.

WordPress post comparison. It will work with any post types or custom post type. e.g. property, cars, products anything.