is up there with Caitlyn, too.
ADCs kits also know another form of overload, one that's less easy to appreciate:
The three aspects of mobility, high range (on either abilities or autos) and AoE damage for waveclear. Add these general strengths on top of the respective unique aspects, and you can see why certain AD carries are pretty much favored.
Most of the current "OP" crop of AD carries have all of these traits:
: Mobility in the resetting jump, high auto-attack range and good waveclear on auto-attacks by virtue of Explosive Shot. Add her self-peel capability and the strong
, and you have a carry with no weaknesses.
: Mobility? Supposed to be his identity. Range? Rather low AA range, but three of his abilities are rather long ranged and AoE => Good waveclear (Godlike on ult due to 4x damage to minions). Also, the passive's ability to crit allows him to use the strength of
, too, while serving as his main steroid.
: One of the highest range non-target dashes, as well as two rather spammable long-range abilities with AoE damage for waveclear. Also, difficult to counter-itemize due to mixed damage.
: While not the exact meta champion right now, she has the same three traits, as well as her utility through the traps and her unique ultimate.
Balancing these kind of full-toolbox-and-then-some AD carries will always be somewhat difficult, as they can prove quite resilient to small nerfs. For example, for as long as BT was a strong rush item, Caitlyn was always a possible pick. Same is true for Corki, who resurfaced during the Summer LCS despite not having received changes to himself.
If you consider the other mobile ADCs, they always give something up for their mobility:
: Has no waveclear and no way to extend her range of influence beyond the one given by auto-attacks. Features the unique strength combination of being a tank-buster and a strong duelist.
: Low waveclear and reduced AA range. To access her greatest mobility tool, she has to sacrifice her range completely.
: A ton of mobility, but all of it MS-based. Good waveclear, but the brunt of it is rather short-ranged (Q can't clear waves along due to the damage fall-off). Low AA range. Strengths: Team utility, Spell Shield
: Long ranged abilities and good mobility (one of the few blink-type spells). Lacks waveclear except for the occasional ult. Can be very annoying to deal with, but appropriately balanced in strengths and weaknesses (weakness: If you close in on him, he dies fast. Lowest ADC base HP and defenses).