UjW0L

This plugin lets you to display Youtube widget on sidebar with the themes that supports sidebar and Footer
It displays video and playlist of your choice with video id and playlist id. 
It also lets you display all videos from you youtube channel with option to navigate to next nd previous button. 
No google API key needed. Uses Youtube rss feed.
You have choice between single video , playlist and channel.
Note:

Simple Youtube Widget

Plugin that provides users option to display Youtube Widget on the Sidebar or Footer

masumabdullah

<h3>Winsome responsive video by http://abdullahmasum.elance.com/</h3>
This plugin will add video from youtube,vimeo and dailymotion video sharing site.
Plugin Features
<ul>
<li>Youtube video.</li>
<li>Fully responsive.</li>
<li>Vimeo video.</li>
<li>dailymotion video.</li>
<li>Mobile touch option. </li>
<li>Very Lightweight.</li>
<li>Works on every modern browser.</li>
<li>Video controll</li>
</ul>
Live Preview: http://www.mhost.5gbfree.com/demo

Winsome Responsive Video

This plugin will embed youtube,vimeo and dailymotion video on your wordpress site fully responsively.

Simple Youtube Widget vs Winsome Responsive Video