I don't think that there is best lines , hopefully if there was... the best line will have the lowest angle with less smoke, less countersteer, and more gas. I think its also called by speed drifting or dynamic drifting.
ASPHALT: like grip cornering. Try search fast/speed drifting threads.
RALLY? With FR/MR/RR car You may use asphalt driftring technique but it cannot help You in rally racing on dirth/snow with 4WD car or FF car. Rally drifting is different... oversteer is not good choice - too slow.