What's the most powerful PHP Framework?

The last three years I have been using Symfony in my actual job, now this month had change of job and started using Phalcon.

My question is now a days I hear a lot of Phalcon, Symfony and Laravel. I want to know your experiences with each one and why choosing one over the other can be better.

From now I know Phalcon is a C extensions and in terms of performance is most useful. But for other things I think Symfony gives you most things done and prepared.

Thanks for all!