For Kyoto, it really depends on what type of hotel you are looking for. Hosinoya and Aman are both resort-like ryokan which are best for a one night stay to experience the hotel itself and to stay at a Japanese-like ryokan if you haven’t done so. RC and PH are both city hotels which are good bases for multi-day stays. Hiiragiya and Tawaraya are more transitional ryokans located within the city center. If it is your first time, I would recommend one night at the resort ryokans and then RC or PH as a base for a few days. Have only been to Tawaraya and other than been there done that, not much desire to go back