Styles can be genetic based on selection.

Smart owners make smart dogs by schooling the dog against as much as he might see when the only thing known about the other dog is his weight, show night.

Most often it is the combination of the two.

Sometimes a dog has a natural propensity to do things a certain way and will be hell bent on having his way.

We had a couple of Bolio crossed dogs that were hell bent on the rear end. They would take a beating to get there, didn't seem to care, would pass on another hold to eventually get there, just plain hell bent. When they got there it was total destruction. The kicker was even the most brutal head dogs didn't teach these two a thing, nor did it persuade them to go another route.

Had other dogs that adapted to anything in front of them, used defense to make offense, just had a ton of brains.

Some are reactionary others are pro-active in their actions.

Even within a family there are differences. In a roundabout way I would give a non answer and say it really depends on the dog. EWO