A lot of the really excellent stuff I've read in the past couple years has come from women authors. Not exclusively, but the ratio seems pretty even, to the extent that this doesn't exactly scream out as impossible through their own merit.
Even looking at the list of the runners-up;
http://www.thehugoawards.org/hugo-hi...6-hugo-awards/
I can think of what were, in my opinion, better titles than at least one on that list (the one I've read was Butcher's
Aeronaut's Windlass, though Seveneves is on my bookshelf waiting for me to have time, and the Ancillary series is on my get-around-to list). I'll list 'em here, just in case people are looking for stuff to read;
The Long Way to a Small, Angry Planet, Becky Chambers
A Darker Shade of Magic, V. E. Schwab
The Library at Mount Char, Scott Hawkins
All something I'd say are "better" than Butcher's latest series. Which is saying something, since I'm a pretty big Butcher fan; the Cinder Spires has some interesting ideas and characters, but it's not really groundbreaking in any particular way. The above three all tread some moderately new ground in interesting and engaging ways. And I'll note two of those are female authors, too; there are a lot of great female authors working in SF these days.
I'm a pretty big fan, but I'm not sure how it's relevant, since the 2016 Hugos require a book to be released in 2015, and so far as I (and Wikipedia, since I checked to be sure) the last Honor book published was
A Rising Thunder in 2012. There was a spinoff series that had a book released in 2015, but it's not really a core Honor Harrington story and doesn't focus on her at all.
But it's pretty standard military/political sci-fi. They sell well, but the
allegory is distractingly thick at times, particularly early on in the series. Not nearly as badly as Terry Goodkind's
Sword of Truth series, which quickly devolved into propagandist garbage.