There is currently a lot of material on the internet saying how "Node.JS is dying use this", "Rails is dying use this", "Django is dying use this" etc.
1) Is there any truth behind these claims?
2) What languages/frameworks do you recommend (for the web) in 2015?
3) Have you ever switched to a different framework/language and never looked back? (why?) (For new projects, or migrating existing ones)