If you could only eat at one restaurant while visiting St. Augustine, which one would you choose?

We are only going to be there for a day and will probably have our big meal at lunchtime. We were leaning towards a place called the Conch House, because the prices looked reasonable and they have conch fritters on the menu, but I would love to have some suggestions on where the locals like to eat. Upvotes for all responses and thanx.