In a new post to his blog, Joshua Thijssen documents some of his first steps into the world of the Symfony2 framework (as a developer who has lived mostly in a Zend Framework/CodeIgniter world). His post doesn't compare the frameworks, it's just his discovery along the way.
A friend of mine who is a big supporter of Symfony told me to give Symfony1 a shot. Off course I was skeptical since I knew less about symfony1 than I did on Zend_Tool. That, plus the fact we needed to autoload, bootstrap and get two frameworks up and running simultaneously. What could possibly go wrong! Conclusion: I’ve got my tool up and running about a 45 minutes later...
He talks about the process he went through to download, setup and configure the framework and start using a "task" to create a simple executable script. He also briefly compares Symfony1 to Symfony2, noting that SF2 is a bit more "out-out-of-the-box friendly" than SF1. The overall experience was a positive one, though. You can find out more about Symfony1 here and Symfony2 here.