Spring vs EJB3

[gsaman]

Hey guys,

Just wanted your point of view on this matter. What do you think ? Can they even be compared?
Here is a link on an article

http://www.onjava.com/pub/a/onjava/2005/06/29/spring-ejb3.html

Compare Parameters:

Xml vs Annotations.
Maturity.
Flexibility.
Maintenance.

Which one would you use in what context?