Even though it wasn't completed they should have added the Panzer Maus. It has a 128mm gun in a turret and over 9 inches of frontal armour. It also goes 12mph!
Sirocco,
The first panther tanks deployed at Kursk were unreliable and dangerously flammable due to poor testing and inadequately armoured fuel tanks. I would choose something with better mobility and reliability: the Panzer IV