Halle, the pursuit to Lübeck - his actions in 1807 - the string of victories with the Allies in 1813 - Großbeeren, Dennewitz - etc.

Bernadotte wasn't more mediocre than a lot of other Marshals as well, I agree he wasn't such a genius in the operational art of war as Boney from 1805 - 1807 - on the other hand he wasn't such a genius in military disasters as Boney as well.