Proxy or AJP - JBoss AS/Tomcat

[SoreGUms]

JBoss AS is essentially Tomcat so interchange as you will.

Does anyone have any comments that would offer some insight on using LiteSpeed as the frontend to a JBoss/Tomcat server in both:
- complexity in configuration (considerations)
- performance (should be better then apache regardless right?)

Thanks.

Some Background information:
I might be switching from Joomla CMS to OpenEdit as I'm running into problems of granularity of the way things work in Joomla. Since OpenEdit is a Java app you need a container to run it in. Also I'm going to be creating JBoss Seam applications eventually, that's why I'm choosing JBoss AS over plain Tomcat (which does work with Seam... but you know)