Neither. Either pick the route most likely to avoid a head on collision if the motor cyclists also swerve, or just pick a path at random if all of them result i

Neither. Either pick the route most likely to avoid a head on collision if the motor cyclists also swerve, or just pick a path at random if all of them result in collisions. Trying to build in ethical rules is a fool's errand because you'll never get it right and might even create additional legal liability due to the rules chosen.