True to your subject heading, then, the focus is on the most known, rather than the most anonymous. Which is interesting, but unfortunate that the two are far from the same thing.
Why don't you make your own thread then? I see nothing wrong with comparing the most known anonymous coins, although it certainly isn't the only way to compare coins or to choose coins to compare.
I don't see anything wrong with it either, nor so I see a point to splitting the topic into tow threads. I just wish that the most anonymous coins were more synonymous with the most known "anonymous" coins.
ffmad has also alluded to this. I don't think there's much arguement there. Whether some of the other anonymous coins make the "most known" list or not, I feel this is a good home for discussion on them and comparison of them.