mg12

This plugin isn’t only SEO friendly, but also provides a good user experience, you can filter achives and expand / collapse achive folder. It’s more faster after version 3.0.
Features:
<ul>
<li>Expand or collapse the monthly post archive listings.</li>
<li>Support for filtering options on AUTHOR and YEAR.</li>
<li>Caches the recent posts list, make page load faster.</li>
<li>SEO friendly.</li>
</ul>
Supported Languages:
<ul>
<li>US English/en_US (default)</li>
<li>简体中文/zh_CN (translate by <a href="http://www.neoease.com/" rel="nofollow ugc">mg12</a>)</li>
<li>Albanian/sq_AL (translate by <a href="http://www.romeolab.com/" rel="nofollow ugc">Romeo Shuka</a>)</li>
<li>Belorussian/by_BY (translate by Marcis Gasuns)</li>
<li>Czech/cs_CZ (translate by <a href="http://blog.prskavec.net/" rel="nofollow ugc">Ladislav Prskavec</a>)</li>
<li>Dutch/nl_NL (translate by <a href="http://wpwebshop.com/" rel="nofollow ugc">Rene Kleine</a>)</li>
<li>Français/fr_FR (translate by <a href="http://www.li-an.fr/blog/" rel="nofollow ugc">Jean-Michel MEYER</a>)</li>
<li>Hungarian/hu_HU (translate by János Csárdi-Braunstein)</li>
<li>Italian/it_IT (translate by <a href="http://gidibao.net/" rel="nofollow ugc">Gianni Diurno</a>)</li>
<li>Lithuania/lt_LT (translate by <a href="http://mantas.malcius.lt/" rel="nofollow ugc">Mantas Malcius</a>)</li>
<li>Polish/pl_PL (translate by <a href="http://www.diariusz.net/" rel="nofollow ugc">Artur</a>)</li>
<li>Russian/ru_RU (translate by kate)</li>
<li>Spanish/es_ES (translate by David Tejedor)</li>
<li>Türkçe/tr_TR (translate by <a href="http://ramerta.com/" rel="nofollow ugc">Hamdi Ömer Faruk</a>)</li>
</ul>
Demo:
<a href="http://www.neoease.com/archives/" rel="nofollow ugc">http://www.neoease.com/archives/</a>

WP-EasyArchives

Display your archive tree on custom page.

aposai

Display your archives in collapsible mode using ajax and jQuery.
Each subnode is loaded via ajax as per user request, so not whole archive is loaded each time your archives page is displayed. If you have performance problems or server issues with other archive plugins, try this one and enjoy.
It also displays the post count for each year and for each month and the comment count for each post. And uses your current wordpress date_format to format the dates.

Ajax Archives

Display your archives in collapsible mode using ajax and jQuery.

WP-EasyArchives vs Ajax Archives