Best raw resources profit-wise imo:
baux > coal > lead > oil > uranium > iron.
Aust. has the top 3. Africa is decent too. But baux/coal >>>>> anything else. Oil is super cheap right now, but in theory should not be given it's power supply demands, although coal plants are cheaper to run which maybe drives the cost of coal up vs. oil. Just avoid iron continents at all cost, lol.