Laravel looks nice but I agree the internal/default naming conventions and structures are a bit odd for 2012. Hopefully this will be changed in an upcoming version.
I am re-building a project in Laravel right now that I started with Slim, using a couple of Symfony components and own code and it's a bit of a turn-off for me that I ended up with quite mixed naming conventions now.
With so many PSR-0 compliant PHP libraries and Composer on the rise, I just think it's the way to go. This doesn't stop me from trying Laravel though and so far this is the only thing that kind of bugs me. But don't get me wrong, basically I really like it so far.