I think some of these are too open ended, for example: 

- http://askubuntu.com/questions/31183/best-mouse-to-use-on-ubuntu

However, from my experience hardware information always seems out of date when I search for it and get some out of date information. 

Perhaps maybe questions like "What are your experiences with a Foobar 9000?" are more useful, when someone is asking about a specific hardware component?