Eh, I think it's probably a bit more equal between them.
I think they both have self-destructive reactions to booze, just operating at different speeds.
Probably it wouldn't hurt Emily to attend a session though, if only to raise her awareness before she gets hurt. I get the sense that Emily is just very childlike and doesn't take into account the potential of harm she could do to herself and others at the time (or its magnitude).
(Faye probably does have that awareness more, but when she was drinking used it as a mechanism to beat herself up more with more drinking.)