Not really. There is but one subspecies of Siberian tiger, Panthera Tigris Altaica. However, recent evidence shows the extinct Caspian tiger was genetically almost identical to the Siberian, meaning...
The Siberian is referred to as the stereotype tiger mainly because it is the most commonly known type of tiger around the world even though it is not actually one of the six subspecies. Most people...
As for tiger aggresiveness, experts rate the Bengal tiger (Panthera Tigris Tigris), and the Sumatran, (Panthera Tigris Sumatrae) as the fiercest tiger subspecies.