I'll second Frommer's, as I have their Singapore and Hong Kong books right in front of me, and have used their Germany and France books, too (though I supplemented the last two with Rick Steve's books and Lets Go). I have not used city-specific books from them, so I would compare them side by side with whatever else is out there to see if they meet your needs.

I do have Rick Steves current London book, which has detailed museum touring maps, and covers London touring quite well, but it tends not to focus on restaurants, and the accomdations are generally in the budget price range.