Which premium tank earns the most credits?

KRZYBooP: I know it's not a popular opinion. However, Artillery for me is always a fun time, and makes credits since they don't need premium ammo. Even when the game turns out to be a loss I am always making profit in my battles. 

Premium, and Elite Tanks earn credits at the same rate. It comes down to what tank you enjoy playing and can out put the most damage. If you have a premium account your credit earning is maximized.    Good luck and have fun!