I do give certain GFs to certain characters. Squall generally gets Shiva, Diablos, Bahamut, Quistis always gets Quezacotl,Pandemonium, and Doomtrain, Rinoa gets Leviathan and Carbuncle, Selphie gets Cerberus, Irvine gets Ifrit, Zell gets the Brothers. I don't remember the rest right now.