Grails vs. Rails vs. Roo!?

There are some great choices out there to choose from when starting a new web development project. Whether you are just doing a simple site or starting your own business. The frameworks, very thankfully, are getting so good. Which one will manage to stand the test of time? The graph below doesn’t mean that the most trend is always going to be the highest one, especially since roo is so fresh and in the past year has been improved dramatically.