Bill the Lizard is the number 1 reviewer when it comes to Close Votes. Now I can only respect the amount of time he's put in to sealing that podium position, however he's doing this in such a way that prevents any other non-moderator from catching up: he's completing more than 40 reviews per day.
Today he's completed 64 Close Vote reviews - 60% more than anyone else on StackOverflow is able to complete. Yesterday, and at least every working day of last week he completed 50 reviews per day - 25% more than anyone else is able to complete.
I'm not saying this is a bad thing, far from it, but as there's a ranking of sorts, shouldn't moderators also be restricted to the reviews cap to make it fair competition?