Graves should pretty much be perma-banned right now. The times he does get through and I pick him top, it's just a slaughter. Quinn and Draven top are good too; basically I follow the formula that if the ADC can consistently explode carries within 3 seconds, throughout mid and late game without the need to have crit, then it's viable top. But currently only 3 ADCs fit that formula and those are the 3 that I've mentioned. I was thinking Jhin would be good top too, but he is too reliant on that 4th attack and crits so he wouldn't be able to fit that role until lategame.
Overall though, out of Graves, Quinn and Draven; Graves far outranks the other 2 at top. Not only does he delete carries, he's tanky as fuck too, as long as you build Black Cleaver and Sterak's; max E gives you 120 armor and magic resistance and his AOE in team fights is amazing, his kit was basically built for top. Quinn on the other hand relies on picks with her ult; granted that I actually get way more kills when playing top Quinn than top Graves, my winrate with Graves still remains above 80% due to his overall capability in teamfights etc etc compared to my average winrate of 60% with Quinn. Then Draven... well basically you have to be good with the champion to actually pull it off top, since it's basically a 2nd ADC.
