Awesme idea. I love it. Is there a way to include the player build or profile so we can see the build used? At the very last the battle tag would be useful.
When you click on a player on the list in rankings, it takes you to a page with the hero's name and all the gear used, also there is a link to click on the particular Battle.net profile for that toon.
But the page you get is more like a spreadsheet, that's why I commented it would be great to work on the presentation, since IMHO all the relevant info is there.