Good afternoon and thank you for all the replies.
I shouldn't be surprised with the split thoughts - as we all have different interests and expectations of our travels.
@ekscrunchy might you be able to say more about Ischia. You seem very convinced!
We land in Rome and spend 3 days and then head out the Cilento Coast ( Paestum) for a bike trip for the following 7 days. Then we go to the Amalfi Coast with friends for a day and a half before they head back home and we continue on for the days I have asked about.
We will be Naples for two days prior to flying back home out of Naples.
We have looked at Capri and in our reading it seems Capri is busier and more expensive compared to Ischia. The thermal pools are intriguing, the hikes along with the quieter pace
Having said this my spouse and I continue to ponder.