I want to know the answer to the following question:
Which ruler had the last, best chance of uniting Greece?
All the background I'm provided with is that "Under his auspices the Peace of Naupactus (217 BC) brought the latest war between Macedon and the Greek leagues (the social war 220-217) to an end, and at this time he controlled all of Greece except Athens, Rhodes and Pergamum.". Is that enough to answer the question?
Answer: no