We are 2 couples visiting Sicily at the end of September. We are landing in Catania, and have come up with the following itinerary.
Two nights somewhere near Mt Etna ( I would appreciate suggestions)
Two nights in ortigia
Two nights in Ragusa to visit the Hill towns
A visit to the mosaics in Villa Romana Casale and then onto Agrigento.
One night in Agrigento. Spend the morning exploring the area.