It depends on so many different things like how fast one was going, the place that was hit, front, side or behind and what type of vehicle. Certain cars do better than others in crashes or was a motorcycle one of the ones involved?
In an accident who would usually have the most damage? The person who got hit or the person who hit the other car?
Hard to say.
Without narrowing it down to types, vehicles and force diagrams, etc., that's like trying to give make sense of the answer to "What is the average temperature of any location on the earth?"
The "mean" is not representative of the whole because of the 'variance' of the data.
Of course, it depends. Once I was hit by another car. The driver of that car was injured, and I was absolutely healthy with no damages. The police said it was me who made that accident. Then I proved my innocence with the help of a great professional. Be the way, if you get in such a terrible situation - call a lawyer at first and let him collect all the evidence and papers. I recommend https://spetslaw.com/, Vladimir is a very qualified attorney!