I told him that are park has the highest of attendances and profit from what everybody said here on this sit. I tried to email six flags and ask them about this but nothing back yet.
No corporations release official attendance figures as it would have a major impact on the stock price. However according to the TEA both Great Adventure and Great America have higher attendance than Magic Mountain which is sad considering MM is open weekends all winter. Knotts Berry Farm has the best deal as they are down the street from Disneyland so they get some easy tourist traffic (though when people see its become a cookie cutter Cedar Fair park they are ready to go back to Disneyland after only a few hours).