Tbh, urgot is the biggest sh;t of them all. I havent played against his recently so idk how he is doing currently but when I played against him last time, he could just press W and that was all he had to do in order to not lose trade. His Q was quite hard to dodge because of my minilags ( which doesnt have to do anything with champ himself but still quite annoying) and in best case scenario where I got perfect trade and managed to perfectly time my riposte ( as Fiora ofc) to his E, he missed because I sidestepped for vital on the side slightly before he casted it and so all he did then was just press W and completely shredded me. In worst case scenario, thanks to lags I missed even that W and got E-ed in which case he always almost killed me ( in single trade). No need to say that he can also overdamage me even in lategame if I dont execute my whole kit fast enough with precision and correctly. And lastly, his god damn R is fastest projectile in the entire game beside Mistake's R ( senna is Mistake ) with also god man big range and on top of this all, his R is also heavily unpredictable as to when it is gonna activate ( To calculate % my HP in real time is not a way to go, nor is acceptable his "hit it and during given time shred his hp below given threshold") That he can use something beforehand to have safe use of it is somewhat unfair. Thats as if I ignited you and it activated only when you had your HP low enough to be killed by it.
When it comes to illaoi, she is combination of poor designs. She is amazing concept but poorly done, especially when it comes to balance. You got out of her E? Go repeat it once more and then go reset. You think that you dodged her tentacles in her R? No :D Nope, not today. not tomorrow, nor day after, just never ( I get hit by effect first and then by animation which itself is already hard enough to dodge, fkin disgusting ability which also kill you just like that). You get hit once and you are dead, you dont have dmg nor CDs good enough to fight her in her R once you do mistake, you are done for. In summary, she is overtunned af all way round in term of raw dmg, def and other stats like CDs, sustain and etc but is "considered" as balanced just because she is quite simple to play around ( not easy but simple). Just because you can void all interactions with her and can abuse her clunkiness. I as Fiora main had it quite easy against her and yet when I lose focus against good illaoi I get beaten like a dog, during laning phase...
Those two are the most disgusting toplaners in whole game. What is more disgusting than those two are picks like heimerdinger or fizz and direct counters countering you via underhanded p*ssy playstyle like full AP malph who just spam Qs and then finish you when he feels like it.