When Google did a massive analysis of hard-drive failures they also didn't publish manufacturer names, because they felt that it would tarnish the company name when it might just be a production run
Yes, such statistics would have to be limited to the exact models analyzed, I can imagine the results in the next generation of the products turning other way around.
> However, in this paper, we do not show a breakdown of drives per manufacturer, model, or vintage due to the proprietary nature of these data.
http://research.google.com/archive/disk_failures.pdf