I had worked on jboss for a year and on weblogic for more than a year now, my experience with the web logic is good compared to jboss as weblogic is more stable and robust, it can handle more than 3000 concurrent requests without throwing a single exception where jboss failed to do so and admin console for the weblogic is excellent, but I think weblogic is more complex then jboss. As far as client is investing money on application server, my choice will be weblogic for sure.
