My personal favorite ADC is still Graves. Probably the 2nd tankiest ADC (behind Urgot) that works well with just about every support. Has great burst in lane so if you're better then your opponents you can usually catch them off guard. His E allows him a nice escape, as well as scaling through out the game since it's atk speed. His W (smokescreen) is probably one of the best skills in the entire game, it's pretty crazy it's on an ADC.
Miss Fortune is good, she's a pretty braindead ADC because it's almost just boils down to if you land a good ult in a team fight, you win, if not, you lose. She is a big lane bully though because AA > Q > AA is a good chunk of damage. She's just very good right now because Black Cleaver + Your Ultimate means almost max stacked armor pen on every champion hit by your ult, it's very strong.
Ashe is fine if you have a support that peels for you well. Alistar, Janna, Thresh come to mind. She doesn't have any escapes but an end game Ashe is probably my favorite ADC to have on my team. The arrow initiate in godlike and if she gets a blue and can spam volley every 4 seconds or so it's pretty damn overpowered.
Ezreal, despite all his nerfs recently is still strong just because his mobility. You grab Frozen Fist on him and just kite kite kite. Annoying fucker but works well with all these assassin / bruisers that just train the ADC all day long.