Web Application Framework

Wow..

That's a really difficult question to answer because there are many many options and it depends on many things. It's sort of like asking which girl should I marry?

The truth is that if you are properly motivated, nearly any framework will do what you want. (Girls, too, but that's a separate discussion.)

The first step is to ask yourself what your strengths are. If you are a fantastic programmer in php, I would start with a php-based framework. If you are madly in love with vb.net, then you should go to an ASP.NET model.

My current favorite framework (which only beta released) is meteor, which is all javascript and node.js

After you have answered that, the next question is to ask what you want your site to do. What sort of database do you want to interact with. Do you have any constraints at all? Are you stuck with a particular OS?

All that being said, you should probably go with ruby on rails.

Thanks for quick response! If  a company currently has   Java (Struts2, Spring) based platform and they would like to adopt best practices and develop roadmap for next 5 years. How do you evaluate different WAF and come up with one that they can use for building web apps?

Really, it is depending upon your decisions only.  It can't be just others suggestion.

Because choosing right framework for your application depends on your project needs, size, hosting, delivery time, developers exp., costing involved.