I once used Phalcon and it was unbelievable. The speed was literally to die for. But aside from that, Laravel yo. Laravel is not just powerful — it is fast, the simplicity of the framework makes it the best out there (being opinionated on the topic). It has an amazing community and developers contributing to its success. If you decide not to use Phalcon, leave Symfony and go with Laravel, it is partially built on Symfony components and also outperforms it by at least a mile.