I see Ghost Rider's talk similar to Hulk's in that he doesn't say much, but when he does.. it will be very impactful and put you back in your seat.
I don't see any Spider-Man wise-cracks happening, and when he does talk, I imagine very serious... "Vengeance" words of goodbye...
I can't picture Ghost Rider going into big long speeches that I sometimes see in the Hulk comics when Hulk gains an extra brain. Short little sayings.. like.. "Death is yours" and "Vengeance will be mine" are the types of things I expect.
A demonic laugh or two is a must which I can't wait to hear as well..