I like Java with Struts and/or JSF. I haven't tried Struts 2 yet, but I hear it's even better. I would never use bare JSP/Servlets again (JSP 2.0 is basically like ASP.Net pages) after using web frameworks like Struts. It's like walking 10 miles to get somewhere instead of jumping on the express train. I also like Hibernate. It makes Persistence (databases) a snap. I know a lot of people think Java technologies are overkill for web development, and that may be true if you're developing a rinky-dink little app that you really don't plan on extending. However, if you want to build something that will be more scalable and maintainable, Java technologies can give you a leg up - especially if you use the available frameworks. You can create a working application very quickly. I also like the fact that all of the tools I use to develop/debug/test web apps are 100% free.
That's my personal preference.
