On a scale of 1-200 there's potential ability and current ability.
Messi on this scale has ~195 potential ability and sits currently on ~190.
Both Draxler and Götze has incredible potential at maybe ~185-190.
Draxler is currently at maybe ~160 while Götze is maybe ~175-80, so for Götze to reach his potential is a shorter route, and he's currently a better player. We're investing in youth but the two years between Draxler and Götze is close to nothing compared to how well ahead Götze has developed.. That's just my opinion, anyway..
Of our latest buys I only think Khedira is world class (or close to). Dybala will be - he's on ~185-90 potential ability as well