FOmarl has the best Resta/Shifta/Deband range so has a support role, outside of that her Techs are not as good damage as others but she's able to use a few beatstick.
FOnewearl has the best MST so heals the most and her SI Tech damage is the best, other Tech damage is acceptable. She can wear Resta merge and Chao stick for that extra R/S/D range if needed.
FOnewm and FOmar are not support at all (they can wear stuff like Resta merge, soliferino, Chao stick etc, but outside of items the range is just awful) however their Gi + RA Tech damage is far superior. FOmar is a bit of a ''mellee fo'' if you swing that way.
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