Of course, any fictional scenario is more likely to hit an ocean or miss
the planet. But that makes for a dull exercise.
For any hit, a lot depends on impactor size. With an impactor of the size that took out the non-avian dinosaurs...the site of impact probably won't matter to us if humanity is unable to deflect it.
See the RadioLab Dinopocalypse Redux from a few days ago for more on the model.