At Hotel Villa Fontaine Tokyo-Jimbocho, you'll be within a 10-minute drive of Imperial Palace Garden and Tokyo Dome. You'll have free perks like WiFi and wired Internet. Also, Yasukuni Shrine and Akihabara Electric Town are within a short drive.
Pros: Very clean, quiet hotel with extremely friendly staff. It had more amenities than I'm used to at US hotels, and the location was great - there were at least 50 restaurants within half a mile, and the subway station was only a few blocks away. Cons: A little small, but hey, it's Tokyo. It is by no means a coffin though.