IBM says that its open source WebSphere Java application server is grabbing support from developers faster than any of its rivals. In a survey of Eclipse developers by US research firm Evans Data, 16 per cent said they used IBM's WebSphere Application Server Community Edition to deploy their apps, up from almost nothing a year …
WebSphere WebLogic Comparison
I have used WebLogic, JBoss to deploy J2EE applications.
WebSphere deployment descriptors for EJBs requires WebSphere Studio to develop and are not as easy to develop as the WebLogic deployment descriptors.
For a comparison of WebSphere-WebLogic please refer
Totally off the mark (re Websphere vs Weblogic)
The comparison of the "free" and the comercial version is an issue.
IBM's mantra..."Lure them with the free stuff, then hook them on our commercial product.".
Not a bad business model and competes against JBOSS.
RE:Totally off the mark (re Websphere vs Weblogic)
Free or commercial, WebSphere application server requires the WebSphere Studio to develop J2EE applications. WebSphere Studio is not free.