TOP3 Rankings in Osaka
The view of Osaka from the observation deck of Abeno Harukas is many blocks of concrete packed together from one end to the other. All central areas of Osaka are all crowded, concrete jungle-like, and miscellaneous, so once you step into a luxury hotel, you will be relieved by the otherworldly space and high quality service, and you will want to visit again and again. There are few luxury hotels in Osaka, but they offer better cost performance than those in Tokyo, so they are well worth the stay.
Then if you want to enjoy an onsen resort while visiting Osaka, we would recommend Arima Onsen, Kinosaki Onsen, or Kyoto. From Osaka Station, it takes about 60 minutes to Arima Onsen and about 30 minutes to Kyoto by train. Kinosaki Onsen is about 180 minutes by express bus. There are hot spring ryokans in the suburbs of Osaka, but they would not be recommended.