8 Stronger: Hisoka Morow While Hisoka wasn't the strongest in the group when it came to physical prowess, he certainly made up for it with this mind-blowing usage of Nen. It goes without saying that Hisoka is stronger than Feitan.
Just because Killua has rapid improving skills, Feitan is stronger and has a LOT more experience than Killua does. His skills are overall better other than speed, which he might be able match Killua in too.
Feitan was the only one powerful enough to be able to fight against and defeat a Chimera Ant Squadron Leader. Unfortunately for him, Kurapika is unstoppable when faced by the members of the Phantom Troupe which means, strong as Feitan is, he stands absolutely no chance against him.
6/10. Though Hisoka will not keep up with Feitan, Hisoka's fighting style simply counters Feitan.
Feitan, with his insane speed might be able to land few hits on Gon, but come on, Adult Gon's power level is on par with Pre-Rose Meruem. Feitan might do a good job evading Gon's attacks but it won't be long before Gon lands a Jajanken : Rock on him. That would probably be the end for Feitan.
In its basic form, the Chrollo is 2 or 3 ranks stronger than the Kite. If Chrollo steals new abilities for the fight, he can easily defeat Feitan.
Float is the second Quirk he unconsciously unlocks when battling the evil Tomura Shigaraki in order to save his friends from the latter's Decay. Deku gallantly grabs everyone around him with Blackwhip and levitates out of Tomura's reach, preventing at least a few deaths.
What if the quirkless Deku has a twin sister? (This fanfic takes place in the first season) Meet Sakura Midoriya, a girl who possesses a quirk called shock plasma while defending Deku from the biggest jerk in the planet Katsuki Bakugo.