We are getting ready to build a web-based user interface for our reporting application and are looking for opinions of the best language to use. The focus is almost entirely the user-experience.
Specifically, the application is a monitoring and reporting tool. Therefore the dashboard will be made up almost entirely of graph-based widgets, sliders and other rich user controls that the user needs to be able to expand and contract, drag/drop, etc.
We are looking for opinions on what you feel would be the best-of-breed web language to write this type of dashboard in.
Thanks in advance!