I know that they have some similarities but the key differences between them is what makes me enjoy Camille's while not being able to stand Fiora's. Of course this is totally just my opinion and others may not share the same view on them as I. This is just me wondering if there is anyone else who is like this and why.
The difference between them is that Fiora cares mostly for her pride/honor and Camille cares only for her house. In more direct terms Fiora is ego-centric while Camille is selfless in her goal of protecting her house. Doesn't hurt that Camille was humanized during her lore because of her relationship Hakim.
Overdoing something can make it more interesting sometimes. Camille is super, incredibly clearly, meant to be seen as a bad person. She's openly derisive of about everyone, she hates poor people, she's a huge asshole in just about every line. And that makes her kinda fun. You can love to hate Camille, because she's just so smug. And she does have some interesting character tics revealed in Progress Day and Tea With The Gray Lady.
Fiora's just sort of...a jerk? But not really in an entertaining way. It's a little more subtle, but she's obviously got a superiority complex. Of course, being more subtle can be better, but League is a game that tends to emphasize BIG personalities, so Fiora's seems less fitting.
It's the same issue with Ezreal. I haven't met anyone who really loves Ezreal. He's just cocky and smug, and most people just kinda roll their eyes. Draven, on the other hand, takes cocky and smug, turns it up to 11, shoves it into himself, and then repeats the process a few more times. And people love Draven. Of course, it's all subjective, but I think the more emphasized character traits work better in League, because champs have a more limited time to show their stuff.
I wouldn't say I dislike Fiora's personality. If I knew her in person I would probably hate her, but as a fictional character I quite enjoy her personality. She's a bitch. But there's a reason for it. Same for Cami. Their reasons are different though, but both want to ensure the survival of their family's houses.
They also go about this in drastically different ways. Cami will be diplomatic to start, but will end up assassinating if she needs to. Fiora straight up will tell you to her face that she challenges you to a duel and will then shut you down.
The key different between Fiora and Camille is that Camille is still also loyal to her city state while Fiora doesn't really give a shit about it and cares about her family more than Demacia as she sees them as someone that forced her to kill her own father and if she got the Chance, she most likely remove them form demacian politics but as one of the big families, she can't and thus have to do stuff that she hates in order to protect her kin as her duty as the head of her house.
Camile on the other hand, fights to protect her own house and piltover and if she smells bullshit, especially towards her own house, someone is gonna get their ass kicked and sliced off in one stroke. As she is more going to be living for a lot longer than most, she is gonna play the long game and has the advantage of retaining her sharp mind while having a lifetime of experience under her belt. She seeks to keep piltover functioning and protected from anyone that would try and take over or subvert the city to their will. She doesn't rule Piltover as much as she is cleaning it of filth and is more or less being a co-leader and shadow adviser to her niece as she can't be in the open ruling her house as that would bring too much attention to her and as a assassin and secret operative. Camile is better as someone that backs people up than to control her house and Piltover in general.
