Quinn
Real talk. Quinn was the first ADC I ever really had fun with. I remember when I first picked her up I thought it was so cool the interactions between being ranged as Quinn, and melee as Valor. When I first picked her up and started getting good I thought I'd try my hand with her in ranked....Bad Idea- I was flammed at constantly for picking an unreliable adc. The worst part, I completely understood why they thought that.
Quinn is a decent adc, she's a great idea but executed poorly. She is supposed to be an adc, attack damage carry, which are super squishy but at the same time dish out damage from afar. So why does her one ability which 100% lets her use her passive and her power make her in melee range of people? Not to mention the amount of times I've flipped into some weird things and weird directions. Riot said they've fixed most of this stuff so I wont go too far about it.
Quinn Also has one of the worst auto attacks. It's so clunky. Not to mention if you're auto attacking a target and Valor marks your target mid auto, it doesn't consume the mark. Which is so frustrating.
I always thought it was super fun to transform into Valor and pick off people, but it's on such a high cooldown and it's a huge high risk high reward skill.
I just wish riot would pay more attention to their Demacian Wings, and make her viable for competitive play.
TLDR: Fix up Quinn and make her viable for ranked play. Please.