The only 2 that come to mind that I really like is that chick from Benediction and the singer from Serpentcult, who I understand just left the group.
There might be a handful of female fronted bands in my collection, but none that I would specify as "favorites".
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I used to be with it, but then they changed what "it" was. Now what I'm with isn't it, and what's it seems weird and scary to me, and it'll happen to you, too.