Yesterday evening I found a spare hour and fiddled a bit with the CPANTS author highscores.
There are now two pages listing all authors with more than 5 dists and with 5 or less dists on CPAN sorted by average Kwalitee. I also did proper 'ex aequo' listings (eg, I'm currently sharing place 25 with BooK and Joshua Hoblitt)
Next up: Add up/down movement information to those lists, as in pop charts. As soon as I'm done with this, I'll set up a cron-job to do weekly reports. And after that: more metrics!