If you take into account that the counterdrive favors the absorption of energy in frontal impacts, your own deductions will answer your question. For us, adapting the position of the chair to the type of trip we are going to make and preferably using the central seat to take the child is the best option.

Analyze the accidents that occur in each country, it is the obligation of the administration.
2017 accident data in Spain (2018 not yet available, but similar):