I agree too. Anything posted here shouldn't be the end all, be all for any prospective student, but a general list of "hey, i found that this school has good people for x field" could be great. I'd leave out the rankings, because honestly I wouldn't even know how to determine them that well, but no harm listing ones I liked. Everyone has to do their own research to figure out what would work for them, but these forums are about sharing information, so why not?
I just applied for late 19th/early 20th century American women's history with a focus on popular culture. I found that UNC-Chapel Hill, Wisconsin-Madison, UChicago, Harvard (AmCiv) and Michigan had good departments given my interests, along with a few others with less depth in the sub-field. Of course, there are certainly other good schools that I didn't look at for various reasons (location, retiring/leaving professors, etc.) but if you want to do something similar, check out those schools!