I do a mix of Seagull & Arnie :
1°:. L2 Farming 2 (coconuts)
2°:. L2 Engineering 2 (to build a dam for the farm)
3°: L2 Science (faster tech points)
4°: L2 Medicine (villagers live longer and become elderly later)
5°: L2 Exploration (stews and spears)
6°: L3 Farming (unlimited fishing)