I think it would be helpful to create a list of the leading academics in each genre/sub-genre of history if we can. This list has the potential to be helpful to both current graduate students and future applicants. I do queer history, so here goes:
Queer History:
George Chauncey, Yale, late 19th and 20th-century urban queer history
Matthew Houlbrook, Oxford, early 20th-century urban (mostly London) queer history
John d'Emilio, UI at Chicago, urban/modern queer history
Judith Butler, Berkeley (soon to be Columbia), masculinities, femininities, the body
Michael Sherry, Northwestern, gay artists, 20th-century modern
Kevin Murphy, Minnesota, modern masculinity
Nancy Enke, Wisconsin, modern masculinity/femininity, modern homosexuality