Quest for effective Web frameworks

We had a discussion during lunch here related to web frameworks, how many there are, how they compare and how web development in the Java space is actually quite difficult. Creating a nice looking web interface with good interaction capabilities with dynamic content is difficult and costly, and I am not particularly happy with what I have seen so far. I have done some work using spring MVC and JSP 2.0 and JSTL lately, and it works fairly well, but for the presentation part there is still a lot missing. Spring 2.0 will have a new set of tags that will make life easier, but anyway. Wicket seems appealing.

The underlying component model and the fact that you may are able to work with the page itself as a first class object, and being able to have a simple databinding approach.