Hee. The stuff that I voted 1st place in the short fiction categories all won! I love when that happens.
Mind you, much as I like Connie Willis and love her Oxford time-travel series, I think this year's Hugo would have been much more deserved by one of the other novels nominated.
I enjoyed reading
Blackout/
All Clear and own paper & e-copies which I re-read from time to time, but it was relatively rather weak for one of her works* and not nearly up to the standard set by her previous Hugo/Nebula-winners in the same series even though it's still an engaging read nonetheless.
But then, these are the Hugos, not the Nebulas, and thus a popularity contest and the series is very popular. Though on that basis alone, I'd have expected Lois McMaster Bujold to scoop the award for the latest Vorkosigan novel.
* Not to mention, seriously flawed with major plot holes/contrivances and apparently also a goodly number of historical/cultural inaccuracies according to people who have more knowledge of WWII-era UK stuff than I do. I think it really suffered from being one very long novel chopped up into two fairly long novels due to publishing industry requirements for printing cheaper volumes.