Harry Potter and the Deathly Hallows - 62 characters/line x 37 lines/page.
Oryx and Crake by Margaret Atwood - 65 x 35
American Gods by Neil Gaiman - 61 x 39
The HP pages are much smaller, though, but have a lot less white space on them, particularily on the edges and the line spacing is smaller than the other two. On the other hand, if you take the German version of Harry Potter, particularly the first couple of books, the numbers are 50x33 so you get 448 pages for the der Gefangene von Askaban v. 317 pages for the Prisoner of Azkaban (my German isn't good enough to read the latter HP books in German, so I don't have them).