In general which do you prefer for building MVP's? I can build an extremely basic (and crappy) CRUD app on the LAMP stack but my code isn't very modular. Would Rails be better for rapid modular development?
This is easy to answer: use the stack that you have the most experience with so you can concentrate on writing a web app, not learning new tech.<p>Personally I like to separate "learning new tech" from "getting work done."