Iop were clear cut front lines. I loved Sadida with suicide dolls and manifold bramble which made gobbull set and solo hunting a lot easier. I had a Sram with Dagger skill and it was neat sneaky solo'ing. Xelor was fun to be evil and aggress other Bonts sapping away their AP. Cra was okay, I just can't remember what I did as Cra.
Sacrier was my first and I get so bored I began sacrificing newer players. The only problem with Sacrier was all the bread I had to buy since I had so much HP and regeneration is so slow, but I had no karmas so I had to farm and make all of it ;; Feca were so great at defending, but they took such a long time to beat stuff D: