My initial plan for this review was to install both frameworks and test both against each other. But after spending a few hours trying to get zend framework to install correctly, I gave up with it...
A PHP based framework should install fairly easy - I will give it another try when I get some spare time (it is a bit sparse at the moment with new baby liam)
Symfony however I have fallen for, every part of the setup is brilliant: from url routing to unit testing.
Initially I had a few problems following there tutorial (it defaults to use Propel ORM when Doctrine seems much better)
I'm still working out how to use most of the features, but that is mainly because there is so much of it.
I am using Crawler Catcher as my main project with symfony (as it needs a rewrite already). With the symfony framework and unit testing which is built in. All the old bugs have already been fixed.
More to come in the near future