I will be renting a car through AutoEurope to drive to the Algarve, Nazare, Obidos, and Sintra. Will return car in Lisbon. I was wondering what the easiest place would be to return the car to(in terms of less traffic, easy to get to, etc). We are staying at the Avenida Palace Hotel. Our options for car dropoff are: Hotel Tivoli, R.Salgado Zenha, and Avda Antonio Augusto. We might also be able to dropoff at these two places but have to check it out again: Marques de Pombal and Estrada de Granja do Marques. Would greatly appreciate any advice. Thank you!