I've read that a handful of times (whenever trying to figure out where to put some new random thing), and still have never come to a clear conclusion. Even better, because there are so many similar places, you might choose completely different ones depending on the day of the week and your current mood.

Too much choice for things like this is harmful IMO. Deep down I truly couldn't care less where the files end up, as long as that place is the 'right' place. There are too many 'right' places which makes it hard to find random things at a later date or when on a box you're not super familiar with. It's also a complete waste of time to think about it at all.