Personally I much prefer the lack of magic in Flask and would far rather make a crud app in Flask than Django. Whenever I have to use Django I'm endlessly frustrated by the fact that everything is so abstracted and there's so much magic that most of my stack traces show only ~30 lines of Django internals and none of my own code.

Another (old but still excellent) resource for anyone learning Flask: http://mattupstate.com/blog/how-i-structure-my-flask-applica...