For fun, every month a selected core of people (any number as long as they commit to doing it monthly, could be the entire board...no criteria to vote except maybe being a board regular as determined by management) submit a list of their top 25 wrestlers at that moment in time. Results are compiled (1st place vote = 25 points, 2nd place =24 points, etc.), and the top 50 or so are posted in a sticky. Next month, re-vote, with movement up and down and new entries analyzed in an accompanying "ratings analysis" style thread.
I figure so many people in this thread move people around thier own personal lists on a given day, the ratings would probably change a fair bit every month.