As someone considering to buy the TL, I have looked at the G35, the BMW, the Audi, the Subaru, etc... All low 30k cars. The TL is at the top of the list in my opinion (despite what Car and Driver says). The BMW feels too removed for my tastes - it feels like a block of concrete on wheels. The Audi just isn't my style and they're everywhere. The Subaru is downright fast and AWD, but for 30k, you don't get the nice creature comforts the others provide.
Between the G35 and the TL, the only downside to the TL is the FWD vs RWD. This usually would be enough to dissuade me, but I like it better in every other aspect. The TL is much more comfortable. I also like the interior (and Stereo) better in the TL. As both don't seem to have an easily replaceable stereo, this does have an influence. The TL doesn't feel like a sedan, not when you sit in it and still not so much when you drive it. Ironically, there seems to be more legroom in the back of the TL than the G35. The TL is cheaper. As for the G35 coupe. Well, it's only a two door, more expensive, way too swank on the inside for my tastes, and very uncomfortable (the driver seat).
Just my two cents.
