The idea of giving each Marksman their own identity isn't working.

Riot tends to forget that the role of an ADC in the end is to survive and do damage... A CC marksman will always be outclassed by someone by Lucian, Vayne, Tristana, MF because death is the best CC. I mean even if you give Ashe or Varus more damage, they will always get fucked over by assassins and tanks, and giving them mobility while still have a substantial amount of damage would make them OP. Sivir, ezreal, and corki are some of the more balanced champions, because they still have the tools to survive while doing a reasonable amount of damage. And then there's caitlyn.. The "sniper" champion who does nearly no damage mid-game and 2 useless spells (Q and R). Her E gives her some mobility but I think even MF's strut would be better. Cait's E is almost the same range as lucian's E. Changing a few numbers in her kit would fix her though. Then there's Kogmaw, Draven, and Twitch. Twitch is in a pretty good state, because with correct positioning he can survive while doing a decent amount of damage, and also has a good laning phase. Draven is one of the worst champions right now. His laning phase is subpar, and the rest of the game pretty much depends on whether he snowballed in lane or not. Kog'maw is similar to Draven except he has a even worse laning phase but if they reach late late game then he will be useful.