I always try to Stay at the Tokyo Dome Hotel
For value and room size, this hotel is the best in Tokyo of the five hotels that I've stayed in during any of my trips to Japan (2). It is right off of two subway (Suidobashi, Korakuen stns) and JR east stations and relatively close access to a third (Kasuga Stn). Note that at least Suidobashi and Korakuen Stn have elevators for those traveling with luggage. Tokyo Dome City / Meet Port provide many dining and shopping options. There is also a so-so amusement park suitable for children. I will continue to book stays at this hotel whenever I am in Tokyo.
Central location in Bunkyo is away from the JR circle loop and requires some travel upon arrival at Tokyo Stn via Narita Expresses. I wasn't aware of the ease of connection from Tokyo station nor of the presence of elevators at Suidobashi stn when I first arrived, so arriving with luggage was a bit of a chore. When the Tokyo Giants are playing at home, this hotel fills up fast. Extra charge for early check-in (before 1600/400pm)
Access to everything
No laundry facilities nearby
With a stay at Tokyo Dome Hotel, you'll be centrally located in Tokyo, within a 10-minute walk of Tokyo Dome and La Qua Tokyo Dome City. Featured amenities include a 24-hour business center, complimentary newspapers in the lobby, and dry cleaning/laundry services. Self parking (subject to charges) is available onsite.