For thrills, SFMM hands down. CP has some good rides, but they are almost all geared towards family. Since you want to go out with a bang, SFMM is the best choice, as it has the best collection of thrilling coasters. Some of which are the best of their type (i.e: Riddlers, Tatsu). I mean, yes, their themiong stinks, but their vegetation is actually pretty good, and it isn't a concrete wasteland populated by hundreds of trashcans. I also like SFMM better than CP, as it is easier to do everything there, and they have more thrills.