Plaza Nueva is thought to be the centre of Granada. If you are going to stay in Granada it would be a good idea to choose accommodation as close to here as possible. It is a communications hub, most of the C minuses that will take you to the most interesting places in Granada pass though every few minutes. Then is a long taxi rank where you can normally catch a taxi 24/7. It is probably not the best place to eat out because many of the restaurants are franchises but you will definitely spend some time in Plaza Nueva if you visit.