1. Carlisle
2. Oxford
3. American
4. Aussie Pit (show lines)
You can see a big difference between the two breeds (Carlisle and Oxford).
Aussie Pits are real neat, and quite game. The Pits that are still 'working' do look quite different to these fellas. In fact, Show Pits from each state, as well as 'working' Pits from each state all have unique looks.
Such an interesting history behind all these gamefowl (Carlisle, Oxford, American (or Oxford/American if you want to go down that road), and Aussie Pits).