Feed(Aggre)gator takes a list of RSS feeds and creates a single list of RSS items from those feeds to be displayed as a widget. You can select how many items you want to display and whether you want to show the entries chronologically or you want to show the latest entries from each feed listed.
You can also opt to display the date associated with the RSS item as well as the author of the item.
<h3>Donate</h3>
If you like the plugin, consider supporting the author through http://www.brownlowdown.net/webdev/feedaggregator/#donate.

feedgator

Feed(Aggre)gator merges a group of RSS feeds into a single widgetized list.

Bas Schuiling

<ul>
<li>Author: <a href="http://www.weblogmechanic.com/about" rel="nofollow ugc">Bas Schuiling</a></li>
<li>Project URI: <a href="http://www.weblogmechanic.com/plugins/feedwordpress-advanced-filters/" rel="nofollow ugc">http://www.weblogmechanic.com/plugins/feedwordpress-advanced-filters/</a></li>
<li>License: GPL 2. See License below for copyright jots and tittles.</li>
</ul>
FeedWordPress Advanced Filters (FAF) gives you powerful options to filter your aggregated Feedwordpress items. Tidy output, import images,make posts expire, rewrite your links… New features are being added constantly.
Features:
<ul>
<li>Remove Keywords or HTML tags</li>
<li>Get and save images into your blog in your defined sizes</li>
<li>Set featured images from your feeds</li>
<li>Put posts in different categories based on the keywords you want</li>
<li>Make aggregated posts expire after some time</li>
<li>Set links to open in new window or use your outbound tracker URL</li>
</ul>
FAF requires Feedwordpress plugin and PHP 5.3 to be installed!
Expire posts filter requires post expirator plugin
<h3>Short Description</h3>
FeedWordPress Advanced Filters (FAF) gives you powerful options to filter your aggregated Feedwordpress items. Tidy output, import images,make posts expire, rewrite your links… New features are being added constantly.
<h3>License</h3>
The FeedWordPress Advanced Filter plugin is copyright © 2013 by Bas Schuiling. It uses 
code derived or translated from:
according to the terms of the <a href="http://www.gnu.org/copyleft/gpl.html" rel="nofollow ugc">GNU General Public License</a>.
This program is free software; you can redistribute it and/or modify it under 
the terms of the <a href="http://www.gnu.org/copyleft/gpl.html" rel="nofollow ugc">GNU General Public License</a> as published by the Free 
Software Foundation; either version 2 of the License, or (at your option) any 
later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY 
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A 
PARTICULAR PURPOSE. See the GNU General Public License for more details.

feedgator vs FeedWordPress Advanced Filters