What I always find useful/interesting is which sources you use to compile your info. For example I see that Funston, Evans, and Buser's positional rankings as well as a composite of them are up on the Yahoo site. Are these lists that are included in your aggregate? This info would tell me which other lists I should or shouldn't bother with. If they're already taken into account in your rankings then I'm less likely to look at them independantly. If you have a list available that would be useful.
Yeah right now I've included the following sources in my compilation,
Keep in mind that I also then tweak the rankings myself so this isn't a straight up compilation of these sources.