Is better if you have your hotel or hostel previous to your arrive.
I´ll recomend you the CABAÑAS CRISTOPHE is a great and quiet place at 15 minutes walking from the Hanga Roa town.
A 6 bed place it cost around USD 150 p/night and includes breakfast.
Besides Cristophe and his family are a very nice people and can get you a good car rental if you need it to go to the beach or places far away from the town.
Cristophe waits for you at the airport and receives you with a flower necklace so you can feel from the beginning the south pacific culture.