Real world comparisons of Glassfish and JBoss 5?

Question

Does anyone have experiences with both in the real world? How do they compare in terms of performance (memory usage, speed, etc)? Stability?

Does JBoss Seam work well

Answer 1

My choice is Glassfish: it is faster to start-up, to deploy web applications. the Admin console is very accurate, moreover it is both graphical and command-line. Now it is fully-supported by Oracle, its future is not uncertain any more. It is based upon OSGi: it is really modular. You can install Spring-osgi applications easly. You can freely choice between Eclipse Link , Apache Open JPA and Hibernate without pain. It is greatly integrated in NetBeans (and, of course, Eclipse).

On the other hand, Jboss is more widespread and thus it is easy to find job on it (IMHO because it is an old App Server; glassfish is relatively new).