See, if anything, the character I dislike the least is Dora. Faye's trauma just seems far more relatable and sympathetic. Additionally, her toxic behavior has (mostly) just been self-destructive. Her story is depressing, sad, and all-too familiar. I can feel a lot worse for a character when they truly seem to be a victim rather than an antagonist. (And yes, before anyone points it out, I know Faye can be prickly and rude, but how often has she actually tried to hurt someone (Emotionally or physically) when it wasn't in the defense of one of her friends? Arm punches and snippy jokes don't count.)
Dora, on the other hand, leads a (relatively speaking) charmed life. Her parents are cool, she's running a very successful small business, and the biggest real grievance in her life is that her brother is more successful than she is. So while she's not just prickly but toxic to those around her, she's vindictive, (to be fair, she's gotten less bad in more recent comics,) she's just not a character whom I care for at all. (Also, not to rehash this discussion, but: While she was in the right for firing Faye, the way she handled that situation was just terrible.)
If anyone had to get eaten by an Allosaurus and disappear from QC, I'd take Dora any day. Faye has problems, but they're the kind of problems that make her sympathetic and make her story sad, not the kind of problems that make her an irritant. (In my opinion.)