Originally Posted by
soranokira
sybilla...doesnt need skill AW, IMO. but additional damage for her is nice.
nanaly should be the one who gets priority for skill AW, but skill AW is far off and skill levels for her is pretty crap. so you can eliminate her for now.
mikoto...meh can't offer any opinions for her.
spica should improve significantly with every skill level.
personally I'd get spica to 4/5 with spica & lauren copies, then rainbow fairy to 5/5. and then throw the rest to sybilla. but generally you'd want to keep your rainbows until you really want to max a skill, especially when there ARE people who can fail 21 rainbows from 4/5 -> 5/5.