In the end it all boils down to use the best tool for you for the job you're working on.
That aside, going from Rails to .NET MVC has been a lesson in patience. While I am glad to have skipped Webforms, there is still something about .NET MVC that weighs on new ideas.
It's just easier to get up and running with a Rails stack and get your idea out there.
But that's just me, maybe for you it's Python, or C or Assembly. Whatever it is you work best in that's what you use.
Posts like this can help a community identify weak points though so I'm always glad to see them.