Well looking at some attendance figures...
SFMM had 3.2 million visitors last year, and SFGam had 3.1 million visitors. The old GL had 1.2 million visitors. Darien Lake had about a 12 percent increase in visitors after it was converted so for argurment's sake I'll say SFO will have a 15 percent raise over last year. That would bring it up to 1.38 million people not even close to SFMM, SFGam or CP for that matter.