When I said that before, I didn't mean to sound like I was defending the 3 mimics. They don't really register to me as separate characters. Edgemaster is fine, but Kilik should never have been a mimic. And Elysium would be better as Necrid-syle mimic, maybe borrowing moves from all the "good" characters. And I'd like to see Inferno in, borrowing moves from the "evil" characters.
I actually like Pat and Pyrrah better than the sisters, I think they're deeper, better characters. Even if Patroklos is a douche. Taki was fine, I liked her. But I like Natsu at least as much. I don't really see how she's a Disney show character, but whatever. I'd like to see Taki return in the story mode, but not as a playable character now that she's been replaced.
I always liked Seong-Mina, more than Kilik and infinitely more than Xiba. So, if I could pick which polearm character we had, it would be her. But I would also like to see Kilik get a revamped version of his old style. Or something new, just not a mimic.