Well from what I remember from Lance's site, The florida disney parks held down the top three (maybe) four spots, followed closey by the California Disney park. Them the Universal Parks (FL & CA). After that, was SFGAdv, SFMM, CP, SFGAm and PKI though I am not sure what the exact order was. In any case, I'm sure all these parks were at the top of the heap. Though I'm not exactly sure how they shook out. Hope that helps some.
jeremy
P.S. This was based on 1999 attendance figures...