Symfony is a great project, I just feel like, in comparing it to Django, there are so few people who would choose PHP over Python that it's not really a fair fight.
I think that depends where in the world you are.
I've used Symfony for years, and Django for 2 years full-time, and I have to say that I find the Symfony documentation is much easier to learn from.
I'm partial to Symfony. Good "getting started", per component documentation and links to cookbook-style articles for things people tend to want to do.