Not based on "total seats", or "total tickets sold", but rather on what actually counts-Butts in seats/game would be a better measure, as there is nothing magical about OSU fans, most fans make about the same noise/fan. This seems like a simple problem. The only other variables that would be worth talking about would be shape (acoustic value of a given stadium) and does the stadium have "piped in sounds" such as elephants, or do many of the fans wear cow bells etc.