I actually do like skimming his blog, when he isn't devoting it to long ranting about this and that. He also spotlights a lot of talented, less heralded cartoonists--both current and past--and posts a lot of nice examples of their work. And despite my indifference to the shows he's produced, I don't deny that he's a helluva cartoonist, and he can draw circles around 3/4 of the animators currently out there right now.
On his blog, he does seem to admire artists who display solid draftsmanship skills as well as good "cartooning" skills, so I have to suspect that he must have the ability to work in a more "straight" style. But like you, I haven't seen any examples to indicate that decisively.