What is the difference between a northern Ohio and a California accent?|150057

Please give some examples (some words both pronounce differently, or some terminology) to illustrate the difference. As I understand it, Drew Carey has the perfect Ohio accent; and a lot of northern Californians have the perfect Californian accent. But to my ear (of a native of NJ), I do not notice ANYTHING different between the accents. They both sound like the standard American accent.

Soda vs pop. Other than that, not too much. Or maybe I_m not aware of it coming from NJ as well.