Jayce: High poke, semi-easy to carry with, can go 2 lanes(top or mid), has no escape(only E for speed and R for little speed)
Zed: High poke mid-late game, can carry hard because of ult and passive, his W passive scales hard late game, he is very slippery as of escaping, he has a slow, not much CC, can reach the enemy carry unless peeled off from enemies
Rengar: Honestly idk his current state is very weird and Riot will be revamping him soon so his play style might change