Our neighbor goes to Gallagher's simply because the butcher is a family member of a friend. That's loyalty for you!
McLoone & Sons offers something different . Along with the meats that everyone else has, he has a deli which I've seen quite a few people in there. In warmer weather he has tables outside his shop which you can grab something to eat and have a seat. I assume this shop is popular with tourists and is close to the harbour and visitor center.