Anthony Bubel

This widget will easily allow you to display the “Biographical Info” of any blog author’s user profile in the sidebar. It allows you to choose from multiple authors/users on the blog, if your blog does, in fact, have multiple authors. Subscribers are excluded for obvious reasons (Contributors, Authors, Editors, and Administrators are included).
Additionally, the widget grants the ability to display the selected author’s Gravatar, with multiple size and alignment options available.
Please submit any bug reports, support questions, or requests <a href="http://anthonybubel.com/contact" rel="nofollow ugc">here</a>.

User Bio Widget

Easily display the "Biographical Info", and Gravatar, of any author's user profile in your blog's sidebar.

kevin heath

This plugin needs at least WordPress 3.3 to work as it uses the new wp_editor call introduced in WP 3.3.
The Big Bio Box plugin uses the latest wp_editor api to allow your author to provide a full formatted about me page. It uses a new box in the profile page and then the user description on the author.php page is swapped for this new bio. The default description can continue to be used in other plugins such as author box at end of posts or wdigeted bios.
The new box has a fully functional tinymce editor – exactly the same as you get with the post editor so ensure your authors are responsible!
There are no setting to configure just upload and activate.
There is no free support for this plugin.
For users of bbPress the version available at wp.ypraise.com has been enhanced to allow a tinymce editor to show on the front-end profile editor so your users can enhance their profile. Details at <a href="http://wp.ypraise.com/2014/bbpress-big-bio-box/" rel="nofollow ugc">http://wp.ypraise.com/2014/bbpress-big-bio-box/</a>
You can see an example bbPress enhanced profile at <a href="http://raisingnoise.co.uk/forums/users/kevin/" rel="nofollow ugc">Kevin Heath</a>

Big Bio Box

Adds an additional bio box with tinymce editor into the profile page and swaps the default user description in author.php with the new formatted bio.

User Bio Widget vs Big Bio Box