Meh, i would have to say it should be FF > Mario + Pokemon, soley because of story/charachters/enviorments
What other franchise do you know has survived 15+ years made out of a new game with new plot, charachters, locations etc.
Mario has about 2-3 diffrent worlds MAX if im right
Pokemon only has 1. ( i say one because technically, they have a bunch, but the only thing that seperates it is the new faces to catch/ beat, not that great of a story.)
What can i say? im a story person i guess.