Most of the "top models" remain the same. It would be nice if there was a "Today's Top Models" and maybe even "This Weeks Top Models". Where only the votes in the last 24/168 hours are counted. This would be far more useful than by country.
I think it might work better as displaying models with the most searches or page hits in the last 24 hours or week; I think too few people use the voting system on a daily/weekly basis and so sample sizes would be too low.