for jinx, you use the rockets and keep max distance and poke her down. you get ahead in lane before 6 and use that to have item advantage over her. you only use mini gun once she gets close enough to attack you, which you want to avoid as long as possible, but should have an advantage in health if you get a few pokes off with rockets.
with twitch, you sneak up and ult vayne. you keep a distance if you can't 1v1 vayne (if vayne takes 3 autos to get to you, she will lose unless ahead) or you sneak up to her if you can 1v1 her.
for ashe, you can ult her, and let your support continue to cc her. you as ashe want to ult as far away as possible while being close enough to start to attack her. make sure support is ready.
for draven, you will beat vayne down and if you get a kill, it's really hard for vayne to catch up.
that's just a few for you.