When I made a trip to Japan, one of my stops was in Hiroshima. In Hiroshima I decided to stay at Hotel New Hiroden. I decided to stay here because of the location. It´s near the trainstation, buses and trams. Besides that it is also located nexto to the Kyobashi River.
My room was bright, spacious and I had a great view.
Downside of the hotel is that I sometimes could hear the traffic outside, but that doesn´t really matter.
If you stay here, the hotel of Hiroshima, you should go to the Shukkeien garden. It´s really nearby and with the public transport you will be there in no time.