I dont see whats so special about jinx, she can't do anything amazing with scripts that she can't do without scripts
Her attack speed is too high, due to her AS Steroids, so a beginner wouldn't be able to kite perfectly with her. Thats the difference, but it becomes too obvious a Jinx kiting that perfectly at max AS.
But the problem with jinx is if shes targeted on a teamfight(which happens 99% of the time) and nobody protects her, shes good as dead. Even so, even the team doing their best to protect her its too hard to not get railed on a teamfight.
So I would say Kalista is the best pick.