iPlanet (Score 1)

We used to use Weblogic but the license was becoming too expensive for our JSP/Servlet Financial Application, so we switched to Sun's iPlanet Web Server and have never looked back. They are pretty much giving away the Software now. It comes free with any server purchase (We use the cheap Netra X1 and Sunfire V100, which are about 1K) and I bet if you wanted to purchase thier new Linux Server, they wouldn't have a problem with you running it for free there as well.
-_Tony