Wait...
How is that going to work? Half of the Organization died in KH: COM, how do you fight them(Along with the KHII Organization members) all at once?
And the reason I used FF characters is beacause, for some reason, I just can't imagine a Disney villan being stronger. Besides, all the Disney worlds have to be 100% completed in order to continue with the game, it would take forever if the final boss was harder that sepheroth.
And for Desurt-Punk, sorry I forgot Kefka. I havent played FFVIII or FFIX, so I has to go to Wikipedia to figure out who were that main bad guys in the games. But after puting so much energy into it, I've decided not to figure out which game Kefka is in.