I don't mind doing an opinion tier list of my own at this point, though my experience with different characters varies. Order within each tier is just alphabetical order.
Personally if there was going to be a rebalance, I think the B+ tier should be the target zone for the bad and overly good characters to go to. Though I think they're still pretty tightly compressed as they are.A+
Akane, Heart, PetraA
Clarice, Elsa, Lieselotte, Scharl, WeissB+
Catherine, Konoha, Maori, Nazuna, Saki, Yoriko, ZeniaB
Angelia, Dorothy, Kamui, LilicaC
Eko, Fiona, Kira, Mei-Fang
Heart and Akane both have very strong hitboxes, tools, and damage. Combination of strength and lack of weaknesses makes them top tier. Petra's toolset is different and she's more reliant on meter, but her hitboxes are just as strong if not stronger and she also has no clear weakness in addition to strong projectile game.A
This tier is just slightly below the A+ tier.
Clarice, Elsa, Lieselotte, and Scharl all have some very strong tools, but they are more matchup dependent than the A+ tier. In Scharls case, they are extremely matchup dependent but that's also part of her strength. In Weiss's case lack of non DP anti air and somewhat more difficult time making people stop blocking makes her ever so slightly worse than the A+ tier.B+
Cathy, Nazuna, and Yoriko all have some very strong strengths, but they're either counter able in general or they suffer matchup problems. Konoha, Saki, and Zenia all are very solid characters with no clear weakness other than that they aren't as outright powerful as the A tier. Maori has a ton of bullshit but can be disrespected and lose in mind games close up for big loss, I think she's mostly only kept down by the A tier though and should be toned down along with them.B
Angelia and Dorothy are both very good at what they do but lack range on their normals, they're mostly kept down by retarded normals from the A tier. Kamui and Lilica are both well rounded characters, but lack a very defining strength that makes them stand out from other characters.C
Eko, Fiona, and Kira all suffer from major matchup issues without having enough strength to make up for them. In Kiras case she is decently strong in many of her matchups but has a few majorly bad ones. Mei-Fang doesn't have a clear strength and also her lack of chains and jump cancels can be an issue when trying to apply pressure, but unlike the other C tier she doesn't have any very strong weaknesses.