Pros and Cons of Various Java Web Presentation Layer Technologies

Question

I\'m currently working on a web app that makes heavy use of JSF and IceFaces. We\'ve had some discussions of moving to another presentation layer, and I thought I\'d take th

Answer 1

I've used GWT for a couple small projects. Here are some things I like about it:

1. It's ajax by default, so I didn't have to make it do ajax, it just came along with using GWT.
2. It's got good separation of client versus server-side code.
3. I can unit-test my client code using junit
4. It lets you built crisp, snappy apps, largely because it's ajax.

Things I don't like:

1. Some things don't work as expected. For example, I've seen cases where click events didn't fire as expected, so I had to do a workaround.
2. Auto-deploy to tomcat running in eclipse sometimes just stops working, and I could never figure out why.