If we're including older characters...

Terra>Zidane>Cecilia>Cloudia>Bartz/Butz/Barts>Squall>Firion/Frionel>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>Tidus

(I dunno about 3's new main...)

My magic psychic powers determine that Vaan will probably be between Cloud and Bartz,
but possibly between Cloud and Cecil.