While the numbers may be favoring Blu-ray in terms of sales, not everyone who has backed it is happy they did such. Paramount, in particular, along with DreamWorks Animation, have decided that Blu-ray is not preferable over HD DVD and so will be dropping support for it. They cite various reasons, mentioning that HD DVD fits better with their existing business plan:

'Part of our vision is to aggressively extend our movies beyond the theater and deliver the quality and features that appeal to our audience,' said Brad Grey, chairman and CEO of Paramount Pictures, a unit of Viacom Inc.'I believe HD DVD is not only the affordable high-quality choice for consumers, but also the smart choice for Paramount.'
They also believe the lower cost for HD DVD players will pan out in the long run, giving Paramount a wider audience to sell to than if they equally split their media between two formats.

The bone of contention for Blu-ray sales is the inclusion of the PS3. Their belief is that most people who own a PS3 will not use it to play Blu-ray movies, so the data shouldn't be included in deciding future endeavors. Tough luck, Sony.