thewebist

A widget for displaying a list of subpage links. The list remains consistent regardless of where you are in the hierarchy.
Other features include:
<ul>
<li>Widget displays only on pages with subpages or on subpages.</li>
<li>List title is a link to the main page parent.</li>
<li>You can specify the link text for the list title, or you can completely hide it.</li>
<li>Sort subpages by Menu Order or Page Title.</li>
<li>Specify the depth of pages shown (all in hierarchy, all in flat list, 1 level, 2 levels, etc.)</li>
<li>Presentation utilizes minimal markup to allow for easy styling via your theme’s CSS.</li>
</ul>

WenderHost Subpages Widget

A widget for displaying a list of subpage links. The list remains consistent regardless of where you are in the hierarchy.

stinkysGTI

A simple plugin for displaying subpages of the current page, with the options for depth and list style. Can be used as a widget, placed anywhere in a template file using <code>superSubpages()</code>, or inserting the shortcode <code>[super_subpages]</code> on any page and custom styles can be applied using the class <code>super-subpages</code>.

Super Subpages

A simple plugin for displaying subpages of the current page, with the options for depth and list style.

WenderHost Subpages Widget vs Super Subpages