WebWork

Agility

WebWork^? using JSP as a view is fairly agile when editing pages, but you have to do some configuration when adding new pages and actions - though not as tedious as Struts/Tiles

Support

The WebWork^? community seems small but pretty active. Documentation is a little sparse, but the learning curve doesn't seem that steep.

Skinability

Nothing special that I see here.

Performance / Scalability

Adequate.

I8ln

Tags for integration with J2SE I8ln.

Expression / Templating Language

WebWork^? has support for different view technologies including both velocity and JSP, so the templating depends on what view technology you use.

The expression language is ognl - just like Tapestry.

Componentization

None as far as I can tell.

Summary

Webwork seems to me like a Struts with a cleaner architecture, but a little less more mature and a smaller feature set. Pretty cool stuff, but nothing compelling for Scooby.