Hey Bill De, I recognize you from the JG site, my handle there is moosehead. My 2011 JGC has the smaller, older screen, and I've rented a C300 with the 8.4" screen. Huge improvement in screen resolution, function, connectivity, entertainment. Would be interested to hear what you think once she arrives.
While I'm obviously pleased with the JGC, we are also two time owner/fans of the MDX. Very similar price value and quality rigs IME, though they are differentiated a bit in size, profile, and personality. As a friendly heads up, Chryco service levels are nowhere near Acura's fine standards, so it is worth the effort to find a great individual service manager if you can.