One of the main strength of GWT is to code in java and everything gets compiled and is loaded by several browsers through gwt deferred binding??

Apart from this, i.e. working only on a single code base, do GWT has any other advantage compared to other existing framework??

Edit: I'm trying to say why should we use gwt and not another framework?? What is there in GWT that makes it special for web application development?? What GWT makes for us and another framework or toolkit don't do??

As i said above GWT makes deferred binding which is a plus, so I wanted what other things it do that makes it special and unique??