Think about the following factors when choosing a stack: - How mature is it ? Is it a latest new cool thing or does it have a proven track record? - What is t

Think about the following factors when choosing a stack: - How mature is it ? Is it a latest new cool thing or does it have a proven track record? - What is the purpose of your project ? Is it just to learn new things or you actually building a real world busines ? How quickly can you time to market ? This is critical. - What kind of support ecosystem exists for this stack ? Can you easily debug, ask other people and get answers quickly ? I don't think RoR will become obsolete in the world of web in the next few years. If you really love it as you say, then go use it specially if you are building something important to do as a business. But by all means go try something new if you want to learn or try as a hobby. while we are discussing, some of the stuff that I have come across while building a web project in 2015: ### Front End Angular, React, Meteor, Knockout and of course Jquery. ### Back End Laravel/Lumen (for php), Django/Flask (Python), Rails/Sinatra (Ruby), Nodejs